Rsyslog could be made to crash if it received specially crafted input.
It was discovered that Rsyslog incorrectly handled invalid PRI values. An attacker could use this issue to send malformed messages to the Rsyslog server and cause it to stop responding, resulting in a denial of service and possibly message loss. (CVE-2014-3634, CVE-2014-3683)
9 October 2014
A security issue affects these releases of Ubuntu and its derivatives:
Rsyslog could be made to crash if it received specially crafted input.
It was discovered that Rsyslog incorrectly handled invalid PRI values. An attacker could use this issue to send malformed messages to the Rsyslog server and cause it to stop responding, resulting in a denial of service and possibly message loss. (CVE-2014-3634, CVE-2014-3683)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
Vulmon