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USN-5503-1: GnuPG vulnerability

5 July 2022

GnuPG could allow forged signatures.



  • gnupg2 - GNU privacy guard - a free PGP replacement


Demi Marie Obenour discovered that GnuPG incorrectly handled injection in
the status message. A remote attacker could possibly use this issue to
forge signatures.

Update instructions

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

Ubuntu 22.04
Ubuntu 21.10
Ubuntu 20.04
Ubuntu 18.04

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


Related notices

  • USN-5503-2: gnupg2, gnupg-agent, gnupg, gpgsm, gpgv, gnupg-curl, gpgv2, dirmngr, scdaemon