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Syslog-ng: Denial of Service

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200712-19 / syslog-ng
Release Date December 29, 2007
Latest Revision December 29, 2007: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
app-admin/syslog-ng < 2.0.6 >= 2.0.6 All supported architectures

Related bugreports: #202718

Synopsis

A Denial of Service vulnerability has been discovered in Syslog-ng.

2.  Impact Information

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.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

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

Code Listing 3.1: Resolution

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

4.  References



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Page updated December 29, 2007

Summary: This is a Gentoo Linux Security Advisory

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