USN-5404-2: Rsyslog vulnerability

24 May 2022

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

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Releases

USN-5404-1 addressed a vulnerability in Rsyslog. This update
provides the corresponding update for Ubuntu 16.04 ESM.

Original advisory details:

Pieter Agten discovered that Rsyslog incorrectly handled certain requests.
An attacker could possibly use this issue to cause a crash.

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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

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

USN-5404-1: rsyslog-elasticsearch, rsyslog-relp, rsyslog-kafka, rsyslog-pgsql, rsyslog-mysql, rsyslog-snmp, rsyslog-czmq, rsyslog-hiredis, rsyslog-kubernetes, rsyslog-gssapi, rsyslog-gnutls, rsyslog, rsyslog-mongodb, rsyslog-openssl

Ubuntu Pro provides up to ten-year security coverage for over 23,000 open-source packages within the Ubuntu Main and Universe repositories.