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Valgrind: Untrusted search path

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200902-03 / valgrind
Release Date February 12, 2009
Latest Revision February 12, 2009: 01
Impact high
Exploitable local
Package Vulnerable versions Unaffected versions Architecture(s)
dev-util/valgrind < 3.4.0 >= 3.4.0 All supported architectures

Related bugreports: #245317

Synopsis

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

2.  Impact Information

Background

Valgrind is an open-source memory debugger.

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.

3.  Resolution Information

Workaround

Do not run "valgrind" from untrusted working directories.

Resolution

All Valgrind users should upgrade to the latest version:

Code Listing 3.1: Resolution

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

4.  References



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Page updated February 12, 2009

Summary: This is a Gentoo Linux Security Advisory

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