Home / vulnerabilities Secunia Security Advisory 49789
Posted on 30 July 2012
Source : packetstormsecurity.org Link
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TITLE:
Xen HVM Guest MMIO Emulation Denial of Service Vulnerability
SECUNIA ADVISORY ID:
SA49789
VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/49789/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=49789
RELEASE DATE:
2012-07-27
DISCUSS ADVISORY:
http://secunia.com/advisories/49789/#comments
AVAILABLE ON SITE AND IN CUSTOMER AREA:
* Last Update
* Popularity
* Comments
* Criticality Level
* Impact
* Where
* Solution Status
* Operating System / Software
* CVE Reference(s)
http://secunia.com/advisories/49789/
ONLY AVAILABLE IN CUSTOMER AREA:
* Authentication Level
* Report Reliability
* Secunia PoC
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS
https://ca.secunia.com/?page=viewadvisory&vuln_id=49789
ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
* AUTOMATED SCANNING
http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/
DESCRIPTION:
A vulnerability has been reported in Xen, which can be exploited by
malicious, local users in a guest virtual machine to cause a DoS
(Denial of Service).
The vulnerability is caused due to certain data of MMIO operations
not being handled properly after emulation cycles in HVM guests and
can be exploited to crash subsequent emulations.
Successful exploitation requires that the guests are not PV
(para-virtualised).
The vulnerability is reported in all supported versions.
SOLUTION:
Apply patch xsa10-4.x.patch.
PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.
ORIGINAL ADVISORY:
http://www.openwall.com/lists/oss-security/2012/07/26/4
OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
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