[USN-5503-2] GnuPG vulnerability


========================================================================== Ubuntu Security Notice USN-5503-2 July 12, 2022
gnupg, gnupg2 vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 16.04 ESM – Ubuntu 14.04 ESM
Summary:
GnuPG could allow forged signatures.
Software Description: – gnupg: GNU privacy guard – a free PGP replacement – gnupg2: GNU privacy guard – a free PGP replacement
Details:
USN-5503-1 fixed a vulnerability in GnuPG. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
Original advisory 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 16.04 ESM: gnupg 1.4.20-1ubuntu3.3+esm2 gnupg2 2.1.11-6ubuntu2.1+esm1
Ubuntu 14.04 ESM: gnupg 1.4.16-1ubuntu2.6+esm1
In general, a standard system update will make all the necessary changes.
References: ubuntu.com/security/notices/USN-5503-2 ubuntu.com/security/notices/USN-5503-1 CVE-2022-34903