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USN-4667-2: APT vulnerability

11 January 2021

APT could be made to crash or stop responding if it opened a specially crafted file.



  • apt - Advanced front-end for dpkg


USN-4667-1 fixed a vulnerability in APT. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

Kevin Backhouse discovered that APT incorrectly handled certain packages.
A local attacker could possibly use this issue to cause APT to crash or
stop responding, resulting in a denial of service.

Update instructions

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

Ubuntu 14.04

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


Related notices

  • USN-4667-1: libapt-pkg5.0, apt-transport-https, libapt-pkg-dev, apt, libapt-inst2.0, libapt-pkg-doc, apt-doc, libapt-pkg6.0, apt-utils