GLSA 200506-24: Heimdal: Buffer overflow vulnerabilities

Posted by Philipp Esselbach on: 06/29/2005 06:52 AM [ Print | 0 comment(s) ]

A Heimdal security update has been released for Gentoo Linux

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Gentoo Linux Security Advisory GLSA 200506-24
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http://security.gentoo.org/
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Severity: High
Title: Heimdal: Buffer overflow vulnerabilities
Date: June 29, 2005
Bugs: #96727
ID: 200506-24

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Synopsis
=======

Multiple buffer overflow vulnerabilities in Heimdal's telnetd server could allow the execution of arbitrary code.

Background
=========

Heimdal is a free implementation of Kerberos 5 that includes a telnetd server.

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

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Package / Vulnerable / Unaffected
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1 app-crypt/heimdal lt; 0.6.5 gt;= 0.6.5

Description
==========

It has been reported that the "getterminaltype" function of Heimdal's telnetd server is vulnerable to buffer overflows.

Impact
=====

An attacker could exploit this vulnerability to execute arbitrary code with the permission of the telnetd server program.

Workaround
=========

There is no known workaround at this time.

Resolution
=========

All users should upgrade to the latest available version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=app-crypt/heimdal-0.6.5"

References
=========

[ 1 ] CAN-2005-2040
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2040
[ 2 ] Heimdal Advisory 2005-06-20
http://www.pdc.kth.se/heimdal/advisory/2005-06-20/

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

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

http://security.gentoo.org/glsa/glsa-200506-24.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 2005 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/2.0