Date: Thu, 16 Sep 2004 10:11:40 +0200
From: Sune Kloppenborg Jeppesen <jaervosz@gentoo.org>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200409-19 ] Heimdal: ftpd root escalation
Cc: bugtraq@securityfocus.com, full-disclosure@lists.netsys.com,
security-alerts@linuxsecurity.com
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Gentoo Linux Security Advisory GLSA 200409-19
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http://security.gentoo.org/
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Severity: High
Title: Heimdal: ftpd root escalation
Date: September 16, 2004
Bugs: #61412
ID: 200409-19
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Synopsis
========
Several bugs exist in the Heimdal ftp daemon which could allow a remote
attacker to gain root privileges.
Background
==========
Heimdal is an implementation of Kerberos 5.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-crypt/heimdal < 0.6.3 >= 0.6.3
Description
===========
Przemyslaw Frasunek discovered several flaws in lukemftpd, which also
apply to Heimdal ftpd's out-of-band signal handling code.
Additionally, a potential vulnerability that could lead to Denial of
Service by the Key Distribution Center (KDC) has been fixed in this
version.
Impact
======
A remote attacker could be able to run arbitrary code with escalated
privileges, which can result in a total compromise of the server.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Heimdal users should upgrade to the latest version:
# emerge sync
# emerge -pv ">=app-crypt/heimdal-0.6.3"
# emerge ">=app-crypt/heimdal-0.6.3"
References
==========
[ 1 ] Heimdal advisory
http://www.pdc.kth.se/heimdal/advisory/2004-09-13/
[ 2 ] Advisory by Przemyslaw Frasunek
http://www.frasunek.com/lukemftpd.txt
[ 3 ] CAN-2004-0794
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0794
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200409-19.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 2004 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/1.0
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