USN-8358-1: haveged vulnerability

Publication date

1 June 2026

Overview

haveged could be made to run programs as an administrator.


Packages

  • haveged - userspace entropy daemon

Details

It was discovered that haveged incorrectly handled credential
checks on its control socket. A local attacker could possibly
use this issue to execute privileged commands.

It was discovered that haveged incorrectly handled credential
checks on its control socket. A local attacker could possibly
use this issue to execute privileged commands.

Update instructions

After a standard system update you need to restart haveged to 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
26.04 LTS resolute haveged –  1.9.19-14ubuntu0.1
libhavege2 –  1.9.19-14ubuntu0.1
25.10 questing haveged –  1.9.19-12+deb13u1build0.25.10.1
libhavege2 –  1.9.19-12+deb13u1build0.25.10.1
24.04 LTS noble haveged –  1.9.14-1ubuntu2+esm1~24.04.1  
libhavege2 –  1.9.14-1ubuntu2+esm1~24.04.1  
22.04 LTS jammy haveged –  1.9.14-1ubuntu1+esm1~22.04.1  
libhavege2 –  1.9.14-1ubuntu1+esm1~22.04.1  

Reduce your security exposure

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