Ubuntu 22.04 LTS USN-5404-1 Critical: Rsyslog Crash Risk

ubuntu

May 6, 2022

Rsyslog could be made to crash if it received a specially crafted request.

Summary

Rsyslog could be made to crash if it received a specially crafted request.

Software Description:

- rsyslog: Enhanced syslogd

Details:

Pieter Agten discovered that Rsyslog incorrectly handled certain requests.

An attacker could possibly use this issue to cause a crash.

Topics Covered

security advisory critical issue ubuntu system crash rsyslog

Update Instructions

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

Ubuntu 22.04 LTS:
  rsyslog                         8.2112.0-2ubuntu2.2

Ubuntu 21.10:
  rsyslog                         8.2102.0-2ubuntu2.2

Ubuntu 20.04 LTS:
  rsyslog                         8.2001.0-1ubuntu1.3

Ubuntu 18.04 LTS:
  rsyslog                         8.32.0-1ubuntu4.2

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