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USN-3863-1: APT vulnerability

22 January 2019

An attacker could trick APT into installing altered packages.



  • apt - Advanced front-end for dpkg


Max Justicz discovered that APT incorrectly handled certain parameters
during redirects. If a remote attacker were able to perform a
machine-in-the-middle attack, this flaw could potentially be used to install
altered packages.

Update instructions

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

Ubuntu 18.10
Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

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


Related notices

  • USN-3863-2: apt-doc, libapt-pkg-doc, apt-transport-https, libapt-inst1.4, libapt-pkg4.12, apt, apt-utils, libapt-pkg-dev