Ubuntu Security Notice USN-2381-1
9th October, 2014
rsyslog vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS
Summary
Rsyslog could be made to crash if it received specially crafted input.
Software description
- rsyslog
– Enhanced syslogd
Details
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)
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 14.04 LTS:
-
rsyslog
7.4.4-1ubuntu2.3
- Ubuntu 12.04 LTS:
-
rsyslog
5.8.6-1ubuntu8.9
- Ubuntu 10.04 LTS:
-
rsyslog
4.2.0-2ubuntu8.3
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.