GLSA 200608-21 Heimdal: Multiple local privilege escalation vulnerabilities

Posted by Bob on: 08/23/2006 08:30 PM [ Print | 0 comment(s) ]

A new security update has been released for Gentoo Linux - Heimdal: Multiple local privilege escalation vulnerabilities. Here the announcement:

Gentoo Linux Security Advisory GLSA 200608-21
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http://security.gentoo.org/
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Severity: High
Title: Heimdal: Multiple local privilege escalation
vulnerabilities
Date: August 23, 2006
Bugs: #143371
ID: 200608-21

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Synopsis
========

Certain Heimdal components, ftpd and rcp, are vulnerable to a local
privilege escalation.

Background
==========

Heimdal is a free implementation of Kerberos 5.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-crypt/heimdal lt; 0.7.2-r3 gt;= 0.7.2-r3

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

The ftpd and rcp applications provided by Heimdal fail to check the
return value of calls to seteuid().

Impact
======

A local attacker could exploit this vulnerability to execute arbitrary
code with elevated privileges.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Heimdal users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=app-crypt/heimdal-0.7.2-r3"

References
==========

[ 1 ] Official advisory
http://www.pdc.kth.se/heimdal/advisory/2006-08-08/
[ 2 ] CVE-2006-3083
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3083
[ 3 ] CVE-2006-3084
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3084

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

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

http://security.gentoo.org/glsa/glsa-200608-21.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 2006 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