[USN-5503-1] GnuPG vulnerability


========================================================================== Ubuntu Security Notice USN-5503-1 July 05, 2022
gnupg2 vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 22.04 LTS – Ubuntu 21.10 – Ubuntu 20.04 LTS – Ubuntu 18.04 LTS
Summary:
GnuPG could allow forged signatures.
Software Description: – gnupg2: GNU privacy guard – a free PGP replacement
Details:
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 LTS: gnupg 2.2.27-3ubuntu2.1 gnupg2 2.2.27-3ubuntu2.1 gpg 2.2.27-3ubuntu2.1
Ubuntu 21.10: gnupg 2.2.20-1ubuntu4.1 gnupg2 2.2.20-1ubuntu4.1 gpg 2.2.20-1ubuntu4.1
Ubuntu 20.04 LTS: gnupg 2.2.19-3ubuntu2.2 gnupg2 2.2.19-3ubuntu2.2 gpg 2.2.19-3ubuntu2.2
Ubuntu 18.04 LTS: gnupg 2.2.4-1ubuntu1.6 gnupg2 2.2.4-1ubuntu1.6 gpg 2.2.4-1ubuntu1.6
In general, a standard system update will make all the necessary changes.
References: ubuntu.com/security/notices/USN-5503-1 CVE-2022-34903
Package Information: launchpad.net/ubuntu/+source/gnupg2/2.2.27-3ubuntu2.1 launchpad.net/ubuntu/+source/gnupg2/2.2.20-1ubuntu4.1 launchpad.net/ubuntu/+source/gnupg2/2.2.19-3ubuntu2.2 launchpad.net/ubuntu/+source/gnupg2/2.2.4-1ubuntu1.6