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USN-4667-1: APT vulnerability

9 December 2020

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

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Releases

Packages

  • apt - Advanced front-end for dpkg

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.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 20.10
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

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

References

Related notices

  • USN-4667-2: libapt-pkg-doc, libapt-inst1.5, apt-transport-https, libapt-pkg-dev, apt-utils, libapt-pkg4.12, apt-doc, apt