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USN-5426-1: needrestart vulnerability

17 May 2022

needrestart could be made to run programs.



  • needrestart - check which daemons need to be restarted after library upgrades


Jakub Wilk discovered that needrestart incorrectly used some regular
expressions. A local attacker could possibly use this issue to execute
arbitrary code.

Update instructions

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

Ubuntu 22.04
Ubuntu 21.10
Ubuntu 20.04
Ubuntu 18.04

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