APT could be made to crash or run programs if it received specially crafted network traffic.
It was discovered that APT incorrectly handled certain http URLs. If a remote attacker were able to perform a man-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)
23 September 2014
A security issue affects these releases of Ubuntu and its derivatives:
APT could be made to crash or run programs if it received specially crafted network traffic.
It was discovered that APT incorrectly handled certain http URLs. If a remote attacker were able to perform a man-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.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.