[ GLSA 200907-10 ] Syslog-ng: Chroot escape

--nextPart1287387.M7kbu77APT
Content-Type: text/plain;
  charset="us-ascii"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200907-10
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: Low
     Title: Syslog-ng: Chroot escape
      Date: July 12, 2009
      Bugs: #247278
        ID: 200907-10

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

Synopsis
========

Syslog-ng does not properly initialize its chroot jail allowing for an
escape if a separate vulnerability in Syslog-ng is exploited.

Background
==========

Syslog-ng is a flexible and scalable system logger.

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

    -------------------------------------------------------------------
     Package              /  Vulnerable  /                  Unaffected
    -------------------------------------------------------------------
  1  app-admin/syslog-ng       < 2.1.3                      *>= 2.0.10
                                                              >= 2.1.3

Description
===========

Florian Grandel reported that Syslog-ng does not call chdir() before
chroot() which leads to an inherited file descriptor to the current
working directory.

Impact
======

A local attacker might exploit a separate vulnerability in Syslog-ng
and use this vulnerability to escape the chroot jail.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Syslog-ng 2.0 users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-admin/syslog-ng-2.0.10"

All Syslog-ng 2.1 users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-admin/syslog-ng-2.1.3"

References
==========

  [ 1 ] CVE-2008-5110
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5110

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

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

  http://security.gentoo.org/glsa/glsa-200907-10.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 2009 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

--nextPart1287387.M7kbu77APT
Content-Type: application/pgp-signature; name=signature.asc 
Content-Description: This is a digitally signed message part.

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.11 (GNU/Linux)
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=8TqN
-----END PGP SIGNATURE-----

--nextPart1287387.M7kbu77APT--