USN-1009-1: GNU C Library vulnerabilities

Releases

• Ubuntu 10.10
• Ubuntu 10.04
• Ubuntu 9.10
• Ubuntu 9.04
• Ubuntu 8.04

Packages

• eglibc - GNU C Library
• glibc - GNU C Library

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)

Update instructions

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

Ubuntu 9.10

• libc6 - 2.10.1-0ubuntu18

Ubuntu 9.04

• libc6 - 2.9-4ubuntu6.3

Ubuntu 8.04

• libc6 - 2.7-10ubuntu7

Ubuntu 10.10

• libc6 - 2.12.1-0ubuntu8

Ubuntu 10.04

• libc6 - 2.11.1-0ubuntu7.5

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

References

• CVE-2010-3847
• CVE-2010-3856