Syslog-ng: Denial of service

Background

Syslog-ng is a flexible and scalable system logger.

Description

Oriol Carreras reported a NULL pointer dereference in the log_msg_parse() function when processing timestamps without a terminating whitespace character.

Impact

A remote attacker could send a specially crafted event to a vulnerable Syslog-ng server, resulting in a crash.

Workaround

There is no known workaround at this time.

Resolution

All Syslog-ng users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-admin/syslog-ng-2.0.6"