bugtraq - [ GLSA 200707-11 ] MIT Kerberos 5: Arbitrary remote code execution

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <20070725221122.GD10257@falco.falcal.net>
Date: Thu, 26 Jul 2007 00:11:22 +0200
From: Raphael Marichez <falco@...too.org>
To: gentoo-announce@...too.org
Cc: bugtraq@...urityfocus.com, full-disclosure@...ts.grok.org.uk,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200707-11 ] MIT Kerberos 5: Arbitrary remote code execution

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200707-11
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: High
     Title: MIT Kerberos 5: Arbitrary remote code execution
      Date: July 25, 2007
      Bugs: #183338
        ID: 200707-11

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

Multiple vulnerabilities in MIT Kerberos 5 could potentially result in
remote code execution with root privileges by unauthenticated users.

Background
==========

MIT Kerberos 5 is a suite of applications that implement the Kerberos
network protocol.

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

    -------------------------------------------------------------------
     Package             /  Vulnerable  /                   Unaffected
    -------------------------------------------------------------------
  1  app-crypt/mit-krb5     < 1.5.2-r3                     >= 1.5.2-r3

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

kadmind is affected by multiple vulnerabilities in the RPC library
shipped with MIT Kerberos 5. It fails to properly handle zero-length
RPC credentials (CVE-2007-2442) and the RPC library can write past the
end of the stack buffer (CVE-2007-2443). Furthermore kadmind fails to
do proper bounds checking (CVE-2007-2798).

Impact
======

A remote unauthenticated attacker could exploit these vulnerabilities
to execute arbitrary code with root 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-krb5-1.5.2-r3"

References
==========

  [ 1 ] CVE-2007-2442
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2442
  [ 2 ] CVE-2007-2443
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2443
  [ 3 ] CVE-2007-2798
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2798

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

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

  http://security.gentoo.org/glsa/glsa-200707-11.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@...too.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2007 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

Content of type "application/pgp-signature" skipped