USN-2353-1: APT vulnerability

Releases

• Ubuntu 14.04 ESM
• Ubuntu 12.04
• Ubuntu 10.04

Packages

• apt - Advanced front-end for dpkg

Details

It was discovered that APT incorrectly handled certain http URLs. If a
remote attacker were able to perform a machine-in-the-middle attack, this flaw
could be exploited to cause APT to crash, resulting in a denial of service,
or possibly execute arbitrary code. The default compiler options for
affected releases should reduce the vulnerability to a denial of service.
(CVE-2014-6273)

In addition, this update fixes regressions introduced by the USN-2348-1
security update: APT incorrectly handled file:/// sources on a different
partition, incorrectly handled Dir::state::lists set to a relative path,
and incorrectly handled cdrom: sources.

Update instructions

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

Ubuntu 14.04

• apt - 1.0.1ubuntu2.4.1

Ubuntu 12.04

• apt - 0.8.16~exp12ubuntu10.20.1

Ubuntu 10.04

• apt - 0.7.25.3ubuntu9.17.1

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

References

• CVE-2014-6273