Home / mailings

PDF

[USN-3395-1] c-ares vulnerability

Posted on 17 August 2017
Ubuntu Security

==========================
==========================
========================
Ubuntu Security Notice USN-3395-1
August 17, 2017

c-ares vulnerability
==========================
==========================
========================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 17.04
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

c-ares could be made to crash if it received specially crafted network
traffic.

Software Description:
- c-ares: library for asynchronous name resolution

Details:

It was discovered that c-ares incorrectly handled certain NAPTR responses=
=2E
A remote attacker could possibly use this issue to cause applications usi=
ng
c-ares to crash, resulting in a denial of service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 17.04:
libc-ares2 1.12.0-1ubuntu0.1

Ubuntu 16.04 LTS:
libc-ares2 1.10.0-3ubuntu0.2

Ubuntu 14.04 LTS:
libc-ares2 1.10.0-2ubuntu0.2

In general, a standard system update will make all the necessary changes.=


References:
https://www.ubuntu.com/usn/usn-3395-1
CVE-2017-1000381

Package Information:
https://launchpad.net/ubuntu/+source/c-ares/1.12.0-1ubuntu0.1
https://launchpad.net/ubuntu/+source/c-ares/1.10.0-3ubuntu0.2
https://launchpad.net/ubuntu/+source/c-ares/1.10.0-2ubuntu0.2



--LVc8NFEuogjdelFIRB77v5QNcDssH3FxP--

 

TOP