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TUCoPS :: Linux :: Gentoo :: bx1235.htm

Syslog-ng: Denial of Service



Syslog-ng: Denial of Service
Syslog-ng: Denial of Service



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Gentoo Linux Security Advisory                           GLSA 200712-19
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http://security.gentoo.org/ 
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  Severity: Normal
     Title: Syslog-ng: Denial of Service
      Date: December 29, 2007
      Bugs: #202718
        ID: 200712-19

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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-2007-6437 

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

http://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
security@gentoo.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 

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