Syslog-ng: Denial of Service

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - -
Gentoo Linux Security Advisory                          
GLSA 200712-19
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - -
                                            http://security.gentoo.or
g/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - -

  Severity: Normal
     Title: Syslog-ng: Denial of Service
      Date: December 29, 2007
      Bugs: #202718
        ID: 200712-19

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - -

Synopsis
========

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

Background
==========

Syslog-ng is a flexible and scalable system logger.

Affected packages
=================

   
------------------------------------------------------------
-------
     Package              /  Vulnerable  /                 
Unaffected
   
------------------------------------------------------------
-------
  1  app-admin/syslog-ng       < 2.0.6                   
    >= 2.0.6

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"

References
==========

  [ 1 ] CVE-2007-6437
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-200
7-6437

Availability
============

This GLSA and any updates to it are available for viewing
at
the Gentoo Security Website:

  ht
tp://security.gentoo.org/glsa/glsa-200712-19.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring
the
confidentiality and security of our users machines is of
utmost
importance to us. Any security concerns should be addressed
to
securitygentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2007 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://
creativecommons.org/licenses/by-sa/2.5