June 2005

ID: 00525
Ref: 485/2005
Date: 29 June 2005:15:13:47
Version: 1

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Title: Gentoo Linux Security Advisory: GLSA 200506-24 - Heimdal
Abstract:
Vendors affected: Gentoo
Operating systems affected: Gentoo
Applications affected: Gentoo

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Title
=====

Gentoo Linux Security Advisory: GLSA 200506-24 - Heimdal

Detail
======

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


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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
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-crypt/heimdal < 0.6.5 >= 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 ">=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