1. Ubuntu Security Notices
  2. USN-1009-1

USN-1009-1: GNU C Library vulnerabilities

Publication date

22 October 2010

Overview

Local root escalation via LD_AUDIT environment variable.

Releases

Packages

Details

Tavis Ormandy discovered multiple flaws in the GNU C Library’s handling
of the LD_AUDIT environment variable when running a privileged binary. A
local attacker could exploit this to gain root privileges. (CVE-2010-3847,
CVE-2010-3856)

Tavis Ormandy discovered multiple flaws in the GNU C Library’s handling
of the LD_AUDIT environment variable when running a privileged binary. A
local attacker could exploit this to gain root privileges. (CVE-2010-3847,
CVE-2010-3856)

Update instructions

In general, a standard system update will 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
9.10 karmic libc6 –  2.10.1-0ubuntu18
9.04 jaunty libc6 –  2.9-4ubuntu6.3
8.04 hardy libc6 –  2.7-10ubuntu7
10.10 maverick libc6 –  2.12.1-0ubuntu8
10.04 lucid libc6 –  2.11.1-0ubuntu7.5

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References

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