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USN-5431-1: GnuPG vulnerability

30 May 2022

GnuPG could be made to stop responding.



  • gnupg2 - GNU privacy guard - a free PGP replacement


It was discovered that GnuPG was not properly processing keys
with large amounts of signatures. An attacker could possibly
use this issue to cause a denial of service.

Update instructions

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

Ubuntu 18.04

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