1. Ubuntu Security Notices
  2. USN-2900-1

USN-2900-1: GNU C Library vulnerability

Publication date

16 February 2016

Overview

GNU C Library could be made to crash or run programs if it received specially crafted network traffic.

Releases

Packages

Details

It was discovered that the GNU C Library incorrectly handled receiving
responses while performing DNS resolution. A remote attacker could use this
issue to cause the GNU C Library to crash, resulting in a denial of
service, or possibly execute arbitrary code.

It was discovered that the GNU C Library incorrectly handled receiving
responses while performing DNS resolution. A remote attacker could use this
issue to cause the GNU C Library to crash, resulting in a denial of
service, or possibly execute arbitrary code.

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
15.10 wily libc6 –  2.21-0ubuntu4.1
14.04 trusty libc6 –  2.19-0ubuntu6.7
12.04 precise libc6 –  2.15-0ubuntu10.13

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References

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