USN-3197-1: libgc vulnerability

Releases

• Ubuntu 16.10
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM
• Ubuntu 12.04

Packages

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

Details

Kuang-che Wu discovered that multiple integer overflow vulnerabilities
existed in libgc. An attacker could use these to cause a denial of
service (application crash) or possibly execute arbitrary code.

Update instructions

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

Ubuntu 16.10

• libgc1c2 - 1:7.4.2-8ubuntu0.1

Ubuntu 16.04

• libgc1c2 - 1:7.4.2-7.3ubuntu0.1

Ubuntu 14.04

• libgc1c2 - 1:7.2d-5ubuntu2.1

Ubuntu 12.04

• libgc1c2 - 1:7.1-8ubuntu0.12.04.3

After a standard system update you need to restart applications using
libgc to make all the necessary changes.

References

• CVE-2016-9427