Home / vulnerabilities cisco-sa-20100324-ldp.txt
Posted on 24 March 2010
Source : packetstormsecurity.org Link
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Cisco Security Advisory: Cisco IOS Software Multiprotocol Label
Switching Packet Vulnerability
Advisory ID: cisco-sa-20100324-ldp
Revision 1.0
For Public Release 2010 March 24 1600 UTC (GMT)
+---------------------------------------------------------------------
Summary
=======
A device running Cisco IOS® Software, Cisco IOS XE Software, or Cisco
IOS XR Software is vulnerable to a remote denial of service (DoS)
condition if it is configured for Multiprotocol Label Switching
(MPLS) and has support for Label Distribution Protocol (LDP).
A crafted LDP UDP packet can cause an affected device running Cisco
IOS Software or Cisco IOS XE Software to reload. On devices running
affected versions of Cisco IOS XR Software, such packets can cause
the device to restart the mpls_ldp process.
A system is vulnerable if configured with either LDP or Tag
Distribution Protocol (TDP).
Cisco has released free software updates that address this
vulnerability.
Workarounds that mitigate this vulnerability are available.
This advisory is posted at:
http://www.cisco.com/warp/public/707/cisco-sa-20100324-ldp.shtml
Note: The March 24, 2010, Cisco IOS Software Security Advisory
bundled publication includes seven Security Advisories. All the
advisories address vulnerabilities in Cisco IOS Software. Each
advisory lists the releases that correct the vulnerability or
vulnerabilities detailed in the advisory. The table at this URL lists
releases that correct all Cisco IOS Software vulnerabilities that
have been published on March 24, 2010, or earlier:
http://www.cisco.com/warp/public/707/cisco-sa-20100324-bundle.shtml
Individual publication links are in "Cisco Event Response: Semiannual
Cisco IOS Software Security Advisory Bundled Publication" at this
link:
http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar10.html
Affected Products
=================
Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software
devices are vulnerable if they are configured to listen for either
targeted LDP hello messages or link LDP hello messages.
All versions of Cisco IOS Software and Cisco IOS XE Software that
support MPLS are affected. Cisco IOS XR Software is affected in
releases prior to 3.5.2.
Vulnerable Products
+------------------
Several features within Cisco IOS Software, Cisco IOS XE Software,
and Cisco IOS XR Software require the device to listen for either
targeted LDP hello messages or link LDP hello messages. The most
reliable way to determine if the device is configured to listen to
LDP hello messages, is to log into the device and perform these
actions:
1. Confirm whether MPLS forwarding is enabled.
A device that has MPLS forwarding disabled, is not vulnerable.
Cisco IOS Software and Cisco IOS XE Software
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
MPLS forwarding is enabled by default in Cisco IOS Software and
Cisco IOS XE Software via the CLI command "mpls ip". A device that
has MPLS forwarding disabled, will have the global configuration
command "no mpls ip" in the configuration. For Cisco IOS Software,
the output of "show mpls interface" will show whether the device
has it disabled. This example shows a Cisco IOS Software device
that has MPLS forwarding disabled:
Router#show mpls interface
IP MPLS forwarding is globally disabled on this router.
Individual interface configuration is as follows:
Interface IP Tunnel Operational
Router#
For Cisco IOS XE Software, examine the output of show
running-config and confirm the existence of the global command
"no mpls ip | include mpls", to ensure that the device will not
process LDP hello messages. This example shows a Cisco IOS XE
Software device that has MPLS forwarding disabled:
Router#show running-config | include mpls
no mpls ip
Router#
Cisco IOS XR Software
~~~~~~~~~~~~~~~~~~~~~
MPLS forwarding is disabled by default in Cisco IOS XR Software.
A device that has MPLS forwarding enabled, will have the global
configuration command "mpls ldp" in the configuration. This example
shows a Cisco IOS XR Software device that has MPLS forwarding
enabled:
RP/0/0/CPU0:Router-XR#show running-config mpls
mpls ldp
!
RP/0/0/CPU0:Router-XR#
This example shows a Cisco IOS XR Software device with MPLS
forwarding disabled:
RP/0/0/CPU0:Router-XR#show running-config mpls
% No such configuration item(s)
RP/0/0/CPU0:Router-XR#
If MPLS is disabled the device is not vulnerable and there is no
requirement to perform the next step.
2. Confirm whether the device is listening to LDP hello messages.
If a device is configured to listen to LDP hello messages, it is
vulnerable.
Cisco IOS Software and Cisco IOS XE Software
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
To determine if a device is configured to listen for LDP hello
messages, log into the device and issue either of the following
command line interface (CLI) commands "show ip socket", "show udp" or
"show control-plane host open-ports". If the output shows any IP
addresses listening on port UDP 646, the device is vulnerable.
This is an example of a device that is configured to listen for
LDP hello messages (one example is shown from each of the above
commands):
Router#show ip socket
Proto Remote Port Local Port In Out Stat TTY OutputIF
17 --listen-- 192.168.0.1 67 0 0 1 0
17 --listen-- 192.168.0.1 68 0 0 1 0
17 --listen-- 192.168.0.1 711 0 0 1 0
17 --listen-- 192.168.0.1 646 0 0 1 0
17 --listen-- 192.168.0.1 3503 0 0 1 0
Router#
Router#show udp
Proto Remote Port Local Port In Out Stat TTY OutputIF
17 --listen-- 192.168.0.1 123 0 0 1 0
17 --listen-- 192.168.0.1 711 0 0 1 0
17 --listen-- 192.168.0.1 646 0 0 1 0
17 --listen-- 192.168.0.1 3503 0 0 1 0
Router#
Router#show control-plane host open-ports
Active internet connections (servers and established)
Prot Local Address Foreign Address Service State
tcp *:23 *:0 Telnet LISTEN
udp *:123 *:0 NTP LISTEN
udp *:646 *:0 LDP Hello LISTEN
udp *:711 *:0 TDP Hello LISTEN
Router#
Cisco IOS XR Software
~~~~~~~~~~~~~~~~~~~~~
To determine if a device is configured to listen for LDP hello
messages, log in to the device and issue the "show udp brief" CLI
command. If the output shows any IP address listening on port UDP
646, the device is vulnerable. This is an example of a device
that is configured to listen for LDP hello messages:
RP/0/0/CPU0:Router-XR#show udp brief
PCB Recv-Q Send-Q Local Address Foreign Address
0x482609e8 0 0 :::514 :::0
0x482605f0 0 0 0.0.0.0:514 0.0.0.0:0
0x48260720 0 0 0.0.0.0:646 0.0.0.0:0
RP/0/0/CPU0:Router-XR#
If the device is not listening on UDP port 646, it is not
vulnerable. Devices that are configured to only use Resource
Reservation Protocol (RSVP) or Border Gateway Protocol (BGP) to
distribute labels or MPLS Static Labels are not vulnerable.
To determine the Cisco IOS Software release that is running on a
Cisco product, administrators can log in to the device and issue the
"show version" command to display the system banner. The system banner
confirms that the device is running Cisco IOS Software by displaying
text similar to "Cisco Internetwork Operating System Software" or
"Cisco IOS Software." The image name displays in parentheses,
followed by "Version" and the Cisco IOS Software release name. Other
Cisco devices do not have the "show version" command or may provide
different output.
This example identifies a Cisco product that is running Cisco IOS
Software Release 12.3(26) with an installed image name of C2500-IS-L:
Router#show version
Cisco Internetwork Operating System Software
IOS (tm) 2500 Software (C2500-IS-L), Version 12.3(26), RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright ) 1986-2008 by cisco Systems, Inc.
Compiled Mon 17-Mar-08 14:39 by dchih
<output truncated>
This example shows a product that is running Cisco IOS Software
release 12.4(20)T with an image name of C1841-ADVENTERPRISEK9-M:
Router#show version
Cisco IOS Software, 1841 Software (C1841-ADVENTERPRISEK9-M), Version 12.4(20)T, RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright ) 1986-2008 by Cisco Systems, Inc.
Compiled Thu 10-Jul-08 20:25 by prod_rel_team
<output truncated>
Additional information about Cisco IOS Software release naming
conventions is available in "White Paper: Cisco IOS Reference Guide"
at this link:
http://www.cisco.com/web/about/security/intelligence/ios-ref.html
Products Confirmed Not Vulnerable
+--------------------------------
* Cisco NX-OS Software is not affected.
* Cisco IOS XR Software Releases 3.5.2 and later are not affected.
No other Cisco products are currently known to be affected by this
vulnerability.
Details
=======
MPLS LDP enables peer label switch routers (LSRs) in an MPLS network
to exchange label binding information for supporting hop-by-hop
forwarding in an MPLS network.
A vulnerability exists in Cisco IOS Software, Cisco IOS XE Software,
and Cisco IOS XR Software when processing a specially crafted LDP
packet. For the device to be vulnerable, it has to be configured to
process LDP hello messages, as explained within the Affected Products
section of this advisory.
The crafted LDP packet, can be received as either a unicast or
multicast UDP packet on port UDP 646 on any listening IP address of
the device. Transit traffic will not trigger this vulnerability.
Note: Devices configured with TDP will also process the crafted LDP
packet and are vulnerable.
For further information regarding MPLS and LDP please consult the
"Multiprotocol Label Switching (MPLS) Introduction" home page
available at this link:
http://www.cisco.com/en/US/products/ps6557/products_ios_technology_home.html
This vulnerability is documented in the Cisco Bug ID CSCsz45567 for
Cisco IOS Software and Cisco IOS XE Software, and CSCsj25893 for
Cisco IOS XR Software. This vulnerability has been assigned Common
Vulnerabilities and Exposures (CVE) ID CVE-2010-0576.
Vulnerability Scoring Details
=============================
Cisco has provided scores for the vulnerability in this advisory
based on the Common Vulnerability Scoring System (CVSS). The CVSS
scoring in this Security Advisory is done in accordance with CVSS
version 2.0.
CVSS is a standards-based scoring method that conveys vulnerability
severity and helps determine urgency and priority of response.
Cisco has provided a base and temporal score. Customers can then
compute environmental scores to assist in determining the impact of
the vulnerability in individual networks.
Cisco has provided an FAQ to answer additional questions regarding
CVSS at:
http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html
Cisco has also provided a CVSS calculator to help compute the
environmental impact for individual networks at:
http://intellishield.cisco.com/security/alertmanager/cvss
CSCsz45567 - Cisco IOS Software Multiprotocol Label Switching Packet Vulnerability
CVSS Base Score - 7.8
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - None
Integrity Impact - None
Availability Impact - Complete
CVSS Temporal Score - 6.4
Exploitability - Functional
Remediation Level - Official-Fix
Report Confidence - Confirmed
CSCsj25893 - Cisco IOS XR Software Multiprotocol Label Switching Packet Vulnerability
CVSS Base Score - 5
Access Vector - Network
Access Complexity - Low
Authentication - None
Confidentiality Impact - None
Integrity Impact - None
Availability Impact - Partial
CVSS Temporal Score - 4.1
Exploitability - Functional
Remediation Level - Official-Fix
Report Confidence - Confirmed
Impact
======
Successful exploitation of this vulnerability on a device running a
vulnerable version of Cisco IOS Software or Cisco IOS XE Software
will cause the affected device to reload.
Exploitation on a router running a vulnerable version of Cisco IOS XR
Software will result in a restart of the mpls_ldp process.
The issue could be repeatedly exploited to cause an extended DoS
condition.
Software Versions and Fixes
===========================
When considering software upgrades, also consult
http://www.cisco.com/go/psirt and any subsequent advisories to
determine exposure and a complete upgrade solution.
In all cases, customers should exercise caution to be certain the
devices to be upgraded contain sufficient memory and that current
hardware and software configurations will continue to be supported
properly by the new release. If the information is not clear, contact
the Cisco Technical Assistance Center (TAC) or your contracted
maintenance provider for assistance.
Each row of the Cisco IOS software table (below) names a Cisco IOS
release train. If a given release train is vulnerable, then the
earliest possible releases that contain the fix (along with the
anticipated date of availability for each, if applicable) are listed
in the "First Fixed Release" column of the table. The "First Fixed
Release for all Advisories in 24 March 2010 Bundle Publication"
column indicates the earliest possible releases which have fixes for
all the published vulnerabilities in this Cisco IOS Security Advisory
bundled publication. Cisco recommends upgrading to the latest
available release where possible.
+-------------------------------------------------------------------+
| Major | Availability of Repaired Releases |
| Release | |
|------------+------------------------------------------------------|
| Affected | | First Fixed Release |
| 12.0-Based | First Fixed Release for | for all Advisories in |
| Releases | this Advisory | 24 March 2010 Bundle |
| | | Publication |
|------------+-----------------------------+------------------------|
| 12.0 | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0DA | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0DB | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0DC | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| | 12.0(32)S15; Available on | 12.0(32)S15; Available |
| 12.0S | 25-MAR-10 | on 25-MAR-10 |
| | | |
| | 12.0(33)S6 | 12.0(33)S6 |
|------------+-----------------------------+------------------------|
| 12.0SC | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| | Vulnerable; first fixed in | |
| | 12.0S | Releases up to and |
| 12.0SL | | including 12.0(14)SL1 |
| | Releases up to and | are not vulnerable; |
| | including 12.0(14)SL1 are | First fixed in 12.0S |
| | not vulnerable. | |
|------------+-----------------------------+------------------------|
| 12.0SP | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | | your support |
| | Releases up to and | organization per the |
| 12.0ST | including 12.0(9)ST are not | instructions in |
| | vulnerable. | Obtaining Fixed |
| | | Software section of |
| | | this advisory. |
|------------+-----------------------------+------------------------|
| 12.0SX | Vulnerable; first fixed in | Vulnerable; first |
| | 12.0S | fixed in 12.0S |
|------------+-----------------------------+------------------------|
| | 12.0(32)SY11 | 12.0(32)SY11 |
| 12.0SY | | |
| | 12.0(32)SY9b | 12.0(32)SY9b |
|------------+-----------------------------+------------------------|
| 12.0SZ | Vulnerable; first fixed in | Vulnerable; first |
| | 12.0S | fixed in 12.0S |
|------------+-----------------------------+------------------------|
| 12.0T | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0W | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0WC | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0WT | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XA | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XB | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XC | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XD | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XE | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XF | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XG | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XH | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XI | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XJ | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XK | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XL | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XM | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XN | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XQ | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XR | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XS | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XT | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.0XV | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| Affected | | First Fixed Release |
| 12.1-Based | First Fixed Release for | for all Advisories in |
| Releases | this Advisory | 24 March 2010 Bundle |
| | | Publication |
|------------+-----------------------------+------------------------|
| 12.1 | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1AA | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| | Vulnerable; first fixed in | |
| | 12.2SE | Releases up to and |
| 12.1AX | | including 12.1(11)AX |
| | Releases up to and | are not vulnerable; |
| | including 12.1(11)AX are | first fixed in 12.2SE |
| | not vulnerable. | |
|------------+-----------------------------+------------------------|
| 12.1AY | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1AZ | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1CX | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1DA | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1DB | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1DC | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| | Vulnerable; first fixed in | Releases up to and |
| | 12.2SXF | including 12.1(7a)E1a |
| 12.1E | | are not vulnerable; |
| | Releases up to and | migrate to any release |
| | including 12.1(7a)E1a are | in 12.2SXF |
| | not vulnerable. | |
|------------+-----------------------------+------------------------|
| | | Releases up to and |
| | | including 12.1(6)EA2c |
| 12.1EA | 12.1(22)EA14; Available on | are not vulnerable. |
| | 27-JUL-10 | Releases 12.1(8)EA1c |
| | | and later are not |
| | | vulnerable. |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | Vulnerable; Contact your | your support |
| | support organization per | organization per the |
| 12.1EB | the instructions in | instructions in |
| | Obtaining Fixed Software | Obtaining Fixed |
| | section of this advisory | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| | Vulnerable; first fixed in | |
| | 12.2SCB | Releases up to and |
| 12.1EC | | including 12.1(7)EC |
| | Releases up to and | are not vulnerable; |
| | including 12.1(7)EC are not | migrate to 12.2SCB |
| | vulnerable. | |
|------------+-----------------------------+------------------------|
| | Releases up to and | Releases up to and |
| 12.1EO | including 12.1(19)EO6 are | including 12.1(19)EO6 |
| | not vulnerable. | are not vulnerable. |
|------------+-----------------------------+------------------------|
| 12.1EU | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1EV | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1EW | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | |
| | release in 12.2 | |
| 12.1EX | | Vulnerable; migrate to |
| | Releases up to and | any release in 12.2 |
| | including 12.1(6)EX are not | |
| | vulnerable. | |
|------------+-----------------------------+------------------------|
| | Releases up to and | Releases up to and |
| 12.1EY | including 12.1(7a)EY3 are | including 12.1(7a)EY3 |
| | not vulnerable. | are not vulnerable. |
|------------+-----------------------------+------------------------|
| 12.1EZ | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1GA | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1GB | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1T | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XA | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XB | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XC | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XD | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XE | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XF | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XG | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XH | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XI | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XJ | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XL | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XM | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XP | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XQ | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XR | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XS | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XT | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XU | Not Vulnerable | Vulnerable; migrate to |
| | | any release in 12.2 |
|------------+-----------------------------+------------------------|
| | Note: Releases prior to | Releases prior to 12.1 |
| | 12.1(5)XV1 are vulnerable, | (5)XV1 are vulnerable, |
| 12.1XV | release 12.1(5)XV1 and | release 12.1(5)XV1 and |
| | later are not vulnerable; | later are not |
| | | vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XW | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XX | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XY | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1XZ | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1YA | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1YB | Vulnerable; migrate to any | Vulnerable; migrate to |
| | release in 12.2 | any release in 12.2 |
|------------+-----------------------------+------------------------|
| 12.1YC | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1YD | Vulnerable; migrate to any | Vulnerable; migrate to |
| | release in 12.2 | any release in 12.2 |
|------------+-----------------------------+------------------------|
| | Releases prior to 12.1(5) | Releases prior to 12.1 |
| | YE1 are vulnerable, release | (5)YE6 are vulnerable, |
| 12.1YE | 12.1(5)YE1 and later are | release 12.1(5)YE6 and |
| | not vulnerable; | later are not |
| | | vulnerable. |
|------------+-----------------------------+------------------------|
| 12.1YF | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.1YH | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | | your support |
| | | organization per the |
| 12.1YI | Not Vulnerable | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| 12.1YJ | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| Affected | | First Fixed Release |
| 12.2-Based | First Fixed Release for | for all Advisories in |
| Releases | this Advisory | 24 March 2010 Bundle |
| | | Publication |
|------------+-----------------------------+------------------------|
| 12.2 | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; migrate to |
| 12.2B | release in 15.0M or a fixed | any release in 15.0M |
| | 12.4 release. | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; migrate to |
| 12.2BC | release in 15.0M or a fixed | any release in 15.0M |
| | 12.4 release. | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; migrate to |
| 12.2BW | release in 15.0M or a fixed | any release in 15.0M |
| | 12.4 release. | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; migrate to |
| 12.2BX | release in 15.0M or a fixed | any release in 15.0M |
| | 12.4 release. | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | Releases prior to 12.2(8)BY | Vulnerable; migrate to |
| | are vulnerable, release | any release in 15.0M |
| 12.2BY | 12.2(8)BY and later are not | or a fixed 12.4 |
| | vulnerable; first fixed in | release. |
| | 12.4 | |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; migrate to |
| 12.2BZ | release in 15.0M or a fixed | any release in 15.0M |
| | 12.4 release. | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; migrate to |
| 12.2CX | release in 15.0M or a fixed | any release in 15.0M |
| | 12.4 release. | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; migrate to |
| 12.2CY | release in 15.0M or a fixed | any release in 15.0M |
| | 12.4 release. | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| 12.2CZ | Not Vulnerable | Vulnerable; migrate to |
| | | any release in 12.2SRE |
|------------+-----------------------------+------------------------|
| 12.2DA | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; migrate to |
| 12.2DD | release in 15.0M or a fixed | any release in 15.0M |
| | 12.4 release. | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; migrate to |
| 12.2DX | release in 15.0M or a fixed | any release in 15.0M |
| | 12.4 release. | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| 12.2EW | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.2EWA | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| | Releases up to and | Releases up to and |
| | including 12.2(37)EX are | including 12.2(37)EX |
| | not vulnerable. | are not vulnerable. |
| 12.2EX | | |
| | Releases 12.2(44)EX and | Releases 12.2(44)EX |
| | later are not vulnerable; | and later are not |
| | first fixed in 12.2SE | vulnerable; first |
| | | fixed in 12.2SE |
|------------+-----------------------------+------------------------|
| | Releases prior to 12.2(37) | Releases prior to 12.2 |
| | EY are vulnerable, release | (37)EY are vulnerable, |
| 12.2EY | 12.2(37)EY and later are | release 12.2(37)EY and |
| | not vulnerable; first fixed | later are not |
| | in 12.2SE | vulnerable |
|------------+-----------------------------+------------------------|
| 12.2EZ | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.2FX | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.2FY | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.2FZ | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.2IRA | Vulnerable; first fixed in | Vulnerable; first |
| | 12.2SRC | fixed in 12.2SRC |
|------------+-----------------------------+------------------------|
| 12.2IRB | Vulnerable; first fixed in | Vulnerable; first |
| | 12.2SRC | fixed in 12.2SRC |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | Vulnerable; Contact your | your support |
| | support organization per | organization per the |
| 12.2IRC | the instructions in | instructions in |
| | Obtaining Fixed Software | Obtaining Fixed |
| | section of this advisory | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | | your support |
| | Vulnerable; 12.2(33)IRE, | organization per the |
| 12.2IRD | available on 15-April-10 | instructions in |
| | | Obtaining Fixed |
| | | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | Vulnerable; Contact your | your support |
| | support organization per | organization per the |
| 12.2IXA | the instructions in | instructions in |
| | Obtaining Fixed Software | Obtaining Fixed |
| | section of this advisory | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | Vulnerable; Contact your | your support |
| | support organization per | organization per the |
| 12.2IXB | the instructions in | instructions in |
| | Obtaining Fixed Software | Obtaining Fixed |
| | section of this advisory | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | Vulnerable; Contact your | your support |
| | support organization per | organization per the |
| 12.2IXC | the instructions in | instructions in |
| | Obtaining Fixed Software | Obtaining Fixed |
| | section of this advisory | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | Vulnerable; Contact your | your support |
| | support organization per | organization per the |
| 12.2IXD | the instructions in | instructions in |
| | Obtaining Fixed Software | Obtaining Fixed |
| | section of this advisory | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | Vulnerable; Contact your | your support |
| | support organization per | organization per the |
| 12.2IXE | the instructions in | instructions in |
| | Obtaining Fixed Software | Obtaining Fixed |
| | section of this advisory | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | Vulnerable; Contact your | your support |
| | support organization per | organization per the |
| 12.2IXF | the instructions in | instructions in |
| | Obtaining Fixed Software | Obtaining Fixed |
| | section of this advisory | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | Vulnerable; Contact your | your support |
| | support organization per | organization per the |
| 12.2IXG | the instructions in | instructions in |
| | Obtaining Fixed Software | Obtaining Fixed |
| | section of this advisory | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | Vulnerable; Contact your | your support |
| | support organization per | organization per the |
| 12.2IXH | the instructions in | instructions in |
| | Obtaining Fixed Software | Obtaining Fixed |
| | section of this advisory | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| | | Releases up to and |
| 12.2JA | Not Vulnerable | including 12.2(4)JA1 |
| | | are not vulnerable. |
|------------+-----------------------------+------------------------|
| | | Vulnerable; migrate to |
| 12.2JK | Not Vulnerable | any release in 15.0M |
| | | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| 12.2MB | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; first |
| 12.2MC | release in 15.0M or a fixed | fixed in 12.4 |
| | 12.4 release. | |
|------------+-----------------------------+------------------------|
| 12.2MRA | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| | Releases prior to 12.2(30)S | Releases prior to 12.2 |
| | are vulnerable, release | (30)S are vulnerable, |
| 12.2S | 12.2(30)S and later are not | release 12.2(30)S and |
| | vulnerable; first fixed in | later are not |
| | 12.2SB | vulnerable; |
|------------+-----------------------------+------------------------|
| | 12.2(31)SB18; Available on | 12.2(33)SB8 |
| 12.2SB | 24-MAR-10 | |
| | | 12.2(31)SB18; |
| | 12.2(33)SB8 | Available on 24-MAR-10 |
|------------+-----------------------------+------------------------|
| 12.2SBC | Vulnerable; first fixed in | Vulnerable; migrate to |
| | 12.2SB | any release in 12.2SRE |
|------------+-----------------------------+------------------------|
| 12.2SCA | Vulnerable; first fixed in | Vulnerable; first |
| | 12.2SCB | fixed in 12.2SCB |
|------------+-----------------------------+------------------------|
| 12.2SCB | 12.2(33)SCB6 | 12.2(33)SCB6 |
|------------+-----------------------------+------------------------|
| 12.2SCC | 12.2(33)SCC1 | 12.2(33)SCC1 |
|------------+-----------------------------+------------------------|
| 12.2SCD | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.2SE | 12.2(50)SE4; Available on | 12.2(50)SE4; Available |
| | 25-MAR-10 | on 25-MAR-10 |
|------------+-----------------------------+------------------------|
| 12.2SEA | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.2SEB | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.2SEC | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.2SED | Vulnerable; first fixed in | Vulnerable; first |
| | 12.2SE | fixed in 12.2SE |
|------------+-----------------------------+------------------------|
| 12.2SEE | Vulnerable; first fixed in | Vulnerable; first |
| | 12.2SE | fixed in 12.2SE |
|------------+-----------------------------+------------------------|
| 12.2SEF | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| | Releases prior to 12.2(25) | Releases prior to 12.2 |
| | SEG4 are vulnerable, | (25)SEG4 are |
| 12.2SEG | release 12.2(25)SEG4 and | vulnerable, release |
| | later are not vulnerable; | 12.2(25)SEG4 and later |
| | first fixed in 12.2SE | are not vulnerable; |
| | | first fixed in 12.2SE |
|------------+-----------------------------+------------------------|
| | Releases up to and | Releases up to 12.2 |
| | including 12.2(31)SG1 are | (31)SG1 are not |
| 12.2SG | not vulnerable; | vulnerable; releases |
| | | 12.2(40)SG and later |
| | Release 12.2(40)SG and | are not vulnerable. |
| | later are not vulnerable; | |
|------------+-----------------------------+------------------------|
| 12.2SGA | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.2SL | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.2SM | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | Vulnerable; Contact your | your support |
| | support organization per | organization per the |
| 12.2SO | the instructions in | instructions in |
| | Obtaining Fixed Software | Obtaining Fixed |
| | section of this advisory | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| 12.2SQ | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.2SRA | Vulnerable; first fixed in | Vulnerable; first |
| | 12.2SRD | fixed in 12.2SRD |
|------------+-----------------------------+------------------------|
| 12.2SRB | Vulnerable; first fixed in | Vulnerable; first |
| | 12.2SRD | fixed in 12.2SRD |
|------------+-----------------------------+------------------------|
| 12.2SRC | 12.2(33)SRC5 | 12.2(33)SRC5 |
|------------+-----------------------------+------------------------|
| 12.2SRD | 12.2(33)SRD3 | 12.2(33)SRD3 |
|------------+-----------------------------+------------------------|
| 12.2SRE | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| 12.2STE | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; migrate to |
| 12.2SU | release in 15.0M or a fixed | any release in 15.0M |
| | 12.4 release. | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | Releases up to and | Releases up to and |
| 12.2SV | including 12.2(18)SV2 are | including 12.2(18)SV2 |
| | not vulnerable. | are not vulnerable. |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | Vulnerable; Contact your | your support |
| | support organization per | organization per the |
| 12.2SVA | the instructions in | instructions in |
| | Obtaining Fixed Software | Obtaining Fixed |
| | section of this advisory | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | Vulnerable; Contact your | your support |
| | support organization per | organization per the |
| 12.2SVC | the instructions in | instructions in |
| | Obtaining Fixed Software | Obtaining Fixed |
| | section of this advisory | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | Vulnerable; Contact your | your support |
| | support organization per | organization per the |
| 12.2SVD | the instructions in | instructions in |
| | Obtaining Fixed Software | Obtaining Fixed |
| | section of this advisory | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | Vulnerable; Contact your | your support |
| | support organization per | organization per the |
| 12.2SVE | the instructions in | instructions in |
| | Obtaining Fixed Software | Obtaining Fixed |
| | section of this advisory | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| | | Releases up to and |
| | | including 12.2(25)SW3 |
| | | are not vulnerable. |
| | Releases prior to 12.2(25) | |
| | SW12 are vulnerable, | Releases 12.2(25)SW12 |
| 12.2SW | release 12.2(25)SW12 and | and later are not |
| | later are not vulnerable; | vulnerable; first |
| | migrate to any release in | fixed in 15.0M |
| | 12.4SW | |
| | | Should the "15.0M" |
| | | link above be going |
| | | somewhere? |
|------------+-----------------------------+------------------------|
| 12.2SX | Vulnerable; first fixed in | Vulnerable; first |
| | 12.2SXF | fixed in 12.2SXF |
|------------+-----------------------------+------------------------|
| 12.2SXA | Vulnerable; first fixed in | Vulnerable; first |
| | 12.2SXF | fixed in 12.2SXF |
|------------+-----------------------------+------------------------|
| 12.2SXB | Vulnerable; first fixed in | Vulnerable; first |
| | 12.2SXF | fixed in 12.2SXF |
|------------+-----------------------------+------------------------|
| 12.2SXD | Vulnerable; first fixed in | Vulnerable; first |
| | 12.2SXF | fixed in 12.2SXF |
|------------+-----------------------------+------------------------|
| 12.2SXE | Vulnerable; first fixed in | Vulnerable; first |
| | 12.2SXF | fixed in 12.2SXF |
|------------+-----------------------------+------------------------|
| 12.2SXF | 12.2(18)SXF17a | 12.2(18)SXF17a |
|------------+-----------------------------+------------------------|
| 12.2SXH | 12.2(33)SXH6 | 12.2(33)SXH6 |
|------------+-----------------------------+------------------------|
| | 12.2(33)SXI2 | 12.2(33)SXI2a |
| 12.2SXI | | |
| | 12.2(33)SXI2a | 12.2(33)SXI3 |
|------------+-----------------------------+------------------------|
| 12.2SY | Vulnerable; first fixed in | Vulnerable; migrate to |
| | 12.2SB | any release in 12.2SRE |
|------------+-----------------------------+------------------------|
| 12.2SZ | Vulnerable; first fixed in | Vulnerable; migrate to |
| | 12.2SB | any release in 12.2SRE |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; migrate to |
| 12.2T | release in 15.0M or a fixed | any release in 15.0M |
| | 12.4 release. | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | | Vulnerable; Contact |
| | | your support |
| | Releases up to and | organization per the |
| 12.2TPC | including 12.2(8)TPC10a are | instructions in |
| | not vulnerable. | Obtaining Fixed |
| | | Software section of |
| | | this advisory |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | |
| | release in 15.0M or a fixed | Vulnerable; migrate to |
| | 12.4 release. | any release in 15.0M |
| 12.2XA | | or a fixed 12.4 |
| | Releases up to and | release. |
| | including 12.2(1)XA are not | |
| | vulnerable. | |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; migrate to |
| 12.2XB | release in 15.0M or a fixed | any release in 15.0M |
| | 12.4 release. | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | | Vulnerable; migrate to |
| 12.2XC | Not Vulnerable | any release in 15.0M |
| | | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | | Vulnerable; migrate to |
| 12.2XD | Not Vulnerable | any release in 15.0M |
| | | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| 12.2XE | Not Vulnerable | Not Vulnerable |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; migrate to |
| 12.2XF | release in 15.0M or a fixed | any release in 15.0M |
| | 12.4 release. | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; migrate to |
| 12.2XG | release in 15.0M or a fixed | any release in 15.0M |
| | 12.4 release. | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | | Vulnerable; migrate to |
| 12.2XH | Not Vulnerable | any release in 15.0M |
| | | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | | Vulnerable; migrate to |
| 12.2XI | Not Vulnerable | any release in 15.0M |
| | | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | | Vulnerable; migrate to |
| 12.2XJ | Not Vulnerable | any release in 15.0M |
| | | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; migrate to |
| 12.2XK | release in 15.0M or a fixed | any release in 15.0M |
| | 12.4 release. | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | Vulnerable; migrate to any | Vulnerable; migrate to |
| 12.2XL | release in 15.0M or a fixed | any release in 15.0M |
| | 12.4 release. | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | | Vulnerable; migrate to |
| 12.2XM | Not Vulnerable | any release in 15.0M |
| | | or a fixed 12.4 |
| | | release. |
|------------+-----------------------------+------------------------|
| | Releases prior to 12.2(33) | Releases prior to 12.2 |
| | XN1 are vulnerable, release | (33)XN1 are |
| 12.2XN | 12.2(33)XN1 and later are | vulnerable, release |
| | not vulnerable; first fixed | 12.2(33)XN1 and later |
| | in 12.2SRC | are not vulnerable; |
| | | first fixed in 12.2SRC |
|------------+-----------------------------+------------------------|
| | Please see Cisco IOS-XE | Please see Cisco |
| 12.2XNA | Software Availability | IOS-XE Software |
| | | Availability |
|------------+-----------------------------+------------------------|
| | Please see Cisco IOS-XE | Please see Cisco |
| 12.2XNB | Software Availability | IOS-XE Software |
| | | Availability |
|------------+-----------------------------+------------------------|
| | Please see Cisco IOS-XE | Please see Cisco |
| 12.2XNC | Software Availability | IOS-XE Software |
| | | Availability |
|------------+-----------------------------+------------------------|
| | Please see Cisco IOS-XE | Please see Cisco |
| 12.2XND | Software Availability | IOS-XE Software |
| | | Availability |
|------------+-----------------------------+------------------------|
| | Please see Cisco IOS-XE | Please see Cisco |
| 12.2XNE | Software Availability | IOS-XE Software |
| | | Availability |
|------------+-----------------------------+------------------------|
| | Please see Cisco IOS-XE | Please see Cisco |
| 12.2XNF | Software Availability | IOS-XE Software |
| | | Availability |
|------------+-----------------------------+------------------------|
| 12.2XO | Not Vulnerable
