A new security update has been released for Gentoo Linux - Syslog-ng: Chroot escape. Here the announcement:
Gentoo Linux Security Advisory GLSA 200907-10
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http://security.gentoo.org/
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Severity: Low
Title: Syslog-ng: Chroot escape
Date: July 12, 2009
Bugs: #247278
ID: 200907-10
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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
=================
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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
