Ubuntu alert USN-5404-1 (rsyslog)

From:
             
 
"Leonidas S. Barbosa" <leo.barbosa@canonical.com>
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-5404-1] Rsyslog vulnerability
Date:
             
 
Fri, 06 May 2022 14:09:01 -0300
Message-ID:
             
 
<20220506170901.GA1379021@d4rkl41n>
==========================================================================
Ubuntu Security Notice USN-5404-1
May 05, 2022

rsyslog vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.04 LTS
- Ubuntu 21.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

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.

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.

References:
  https://ubuntu.com/security/notices/USN-5404-1
  CVE-2022-24903

Package Information:
  https://launchpad.net/ubuntu/+source/rsyslog/8.2112.0-2ub...
  https://launchpad.net/ubuntu/+source/rsyslog/8.2102.0-2ub...
  https://launchpad.net/ubuntu/+source/rsyslog/8.2001.0-1ub...
  https://launchpad.net/ubuntu/+source/rsyslog/8.32.0-1ubun...