USN-3612-1: librelp vulnerability

28 March 2018

librelp vulnerability

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

  • Ubuntu 14.04 LTS

Summary

librelp could be made to crash or run programs if it received specially crafted network traffic.

Software Description

  • librelp - Reliable Event Logging Protocol (RELP) library

Details

Bas van Schaik and Kevin Backhouse discovered that librelp incorrectly handled checking certain x509 certificates. A remote attacker able to connect to rsyslog 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 14.04 LTS
librelp0 - 1.2.2-2ubuntu1.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to restart rsyslog to make all the necessary changes.

References