Full Disclosure: [ GLSA 200902-03 ] Valgrind: Untrusted search path

[Robert Buchholz <rbu () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200902-03
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Valgrind: Untrusted search path
      Date: February 12, 2009
      Bugs: #245317
        ID: 200902-03

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Synopsis
========

An untrusted search path vulnerability in Valgrind might result in the
execution of arbitrary code.

Background
==========

Valgrind is an open-source memory debugger.

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

    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  dev-util/valgrind       < 3.4.0                          >= 3.4.0

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

Tavis Ormandy reported that Valgrind loads a .valgrindrc file in the
current working directory, executing commands specified there.

Impact
======

A local attacker could prepare a specially crafted .valgrindrc file and
entice a user to run Valgrind from the directory containing that file,
resulting in the execution of arbitrary code with the privileges of the
user running Valgrind.

Workaround
==========

Do not run "valgrind" from untrusted working directories.

Resolution
==========

All Valgrind users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-util/valgrind-3.4.0"

References
==========

  [ 1 ] CVE-2008-4865
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4865

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

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

  http://security.gentoo.org/glsa/glsa-200902-03.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 2009 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

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