Debian Security Advisory DSA 3047-1 (rsyslog - security update)

Summary
Mancha discovered a vulnerability in rsyslog, a system for log processing. This vulnerability is an integer overflow that can be triggered by malformed messages to a server, if this one accepts data from untrusted sources, provoking message loss. This vulnerability can be seen as an incomplete fix of CVE-2014-3634 (DSA 3040-1).
Solution
For the stable distribution (wheezy), this problem has been fixed in version 5.8.11-3+deb7u2. For the testing distribution (jessie), this problem has been fixed in version 8.4.2-1. For the unstable distribution (sid), this problem has been fixed in version 8.4.2-1. We recommend that you upgrade your rsyslog packages.
Insight
Rsyslog is a multi-threaded implementation of syslogd (a system utility providing support for message logging), with features that include: * reliable syslog over TCP, SSL/TLS and RELP * on-demand disk buffering * email alerting * writing to MySQL or PostgreSQL databases (via separate output plugins) * permitted sender lists * filtering on any part of the syslog message * on-the-wire message compression * fine-grained output format control * failover to backup destinations * enterprise-class encrypted syslog relaying
Affected
rsyslog on Debian Linux
Detection
This check tests the installed software version using the apt package manager.
References