USN-1546-1: libgc vulnerability

Releases

• Ubuntu 12.04
• Ubuntu 11.10
• Ubuntu 11.04
• Ubuntu 10.04
• Ubuntu 8.04

Packages

• libgc - Boehm-Demers-Weiser garbage collecting storage allocator library

Details

It was discovered that multiple integer overflows existed in the
malloc and calloc implementations in the Boehm-Demers-Weiser garbage
collecting memory allocator (libgc). These could allow an attacker
to cause a denial of service or possibly execute arbitrary code.

Update instructions

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

Ubuntu 8.04

• libgc1c2 - 1:6.8-1.1ubuntu0.1

Ubuntu 12.04

• libgc1c2 - 1:7.1-8ubuntu0.12.04.1

Ubuntu 11.10

• libgc1c2 - 1:7.1-8ubuntu0.11.10.1

Ubuntu 11.04

• libgc1c2 - 1:6.8-1.2ubuntu3.2

Ubuntu 10.04

• libgc1c2 - 1:6.8-1.2ubuntu1.1

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

References

• CVE-2012-2673