USN-8040-1: MUNGE vulnerability

Publication date

12 February 2026

Overview

MUNGE could be made to crash or run programs as your login if it opened a specially crafted file.


Packages

  • munge - authentication service for credentials

Details

Titouan Lazard discovered that MUNGE contained an exploitable buffer
overflow in munged (the MUNGE authentication daemon). A local attacker
could possibly use this issue to forge MUNGE credentials, leading to
arbitrary code execution.

Titouan Lazard discovered that MUNGE contained an exploitable buffer
overflow in munged (the MUNGE authentication daemon). A local attacker
could possibly use this issue to forge MUNGE credentials, leading to
arbitrary code execution.

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
25.10 questing libmunge-dev –  0.5.16-1ubuntu0.1
libmunge2 –  0.5.16-1ubuntu0.1
munge –  0.5.16-1ubuntu0.1
24.04 LTS noble libmunge-dev –  0.5.15-4ubuntu0.1
libmunge2 –  0.5.15-4ubuntu0.1
munge –  0.5.15-4ubuntu0.1
22.04 LTS jammy libmunge-dev –  0.5.14-6ubuntu0.1
libmunge2 –  0.5.14-6ubuntu0.1
munge –  0.5.14-6ubuntu0.1
20.04 LTS focal libmunge-dev –  0.5.13-2ubuntu0.1~esm1  
libmunge2 –  0.5.13-2ubuntu0.1~esm1  
munge –  0.5.13-2ubuntu0.1~esm1  
18.04 LTS bionic libmunge-dev –  0.5.13-1ubuntu0.1~esm1  
libmunge2 –  0.5.13-1ubuntu0.1~esm1  
munge –  0.5.13-1ubuntu0.1~esm1  
16.04 LTS xenial libmunge-dev –  0.5.11-3ubuntu0.1+esm1  
libmunge2 –  0.5.11-3ubuntu0.1+esm1  
munge –  0.5.11-3ubuntu0.1+esm1  
14.04 LTS trusty libmunge-dev –  0.5.11-1ubuntu1.1+esm1  
libmunge2 –  0.5.11-1ubuntu1.1+esm1  
munge –  0.5.11-1ubuntu1.1+esm1  

Reduce your security exposure

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