USN-7946-2: GnuPG vulnerability

Publication date

8 January 2026

Overview

GnuPG could be made to crash or run programs if it received specially crafted network traffic.


Packages

  • gnupg - GNU privacy guard - a free PGP replacement

Details

USN-7946-1 fixed vulnerabilities in GnuPG 2.x.
This update provides the corresponding updates for GnuPG 1.x.

Original advisory details:
It was discovered that GnuPG incorrectly handled crafted input.
A remote attacker could possibly use this issue to crash the program,
or execute arbitrary code.

USN-7946-1 fixed vulnerabilities in GnuPG 2.x.
This update provides the corresponding updates for GnuPG 1.x.

Original advisory details:
It was discovered that GnuPG incorrectly handled crafted input.
A remote attacker could possibly use this issue to crash the program,
or execute arbitrary code.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
16.04 LTS xenial gnupg –  1.4.20-1ubuntu3.3+esm3  
gpgv –  1.4.20-1ubuntu3.3+esm3  
14.04 LTS trusty gnupg –  1.4.16-1ubuntu2.6+esm2  
gpgv –  1.4.16-1ubuntu2.6+esm2  

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