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TUCoPS :: Linux :: Gentoo :: va2603.htm

Valgrind: Untrusted search path



Valgrind: Untrusted search path
Valgrind: Untrusted search path



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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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