A new security update has been released for Gentoo Linux - MIT Kerberos 5: Multiple local privilege escalation. Here the announcement:
Gentoo Linux Security Advisory GLSA 200608-15
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http://security.gentoo.org/
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Severity: High
Title: MIT Kerberos 5: Multiple local privilege escalation
vulnerabilities
Date: August 10, 2006
Bugs: #143240
ID: 200608-15
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Synopsis
========
Some applications shipped with MIT Kerberos 5 are vulnerable to local
privilege escalation.
Background
==========
MIT Kerberos 5 is a suite of applications that implement the Kerberos
network protocol. It is designed to provide strong authentication for
client/server applications by using secret-key cryptography.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-crypt/mit-krb5 < 1.4.3-r3 >= 1.4.3-r3
Description
===========
Unchecked calls to setuid() in krshd and v4rcp, as well as unchecked
calls to seteuid() in kftpd and in ksu, have been found in the MIT
Kerberos 5 program suite and may lead to a local root privilege
escalation.
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 MIT Kerberos 5 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-crypt/mit-krb5-1.4.3-r3"
References
==========
[ 1 ] CVE-2006-3083
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3083
[ 2 ] 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-200608-15.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
