A new security update has been released for Gentoo Linux - RAR, UnRAR: Buffer overflow. Here the announcement:
Gentoo Linux Security Advisory GLSA 200702-04
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http://security.gentoo.org/
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Severity: Normal
Title: RAR, UnRAR: Buffer overflow
Date: February 13, 2007
Bugs: #166440
ID: 200702-04
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Synopsis
========
RAR and UnRAR contain a buffer overflow allowing the execution of
arbitrary code.
Background
==========
RAR and UnRAR provide command line interfaces for compressing and
decompressing RAR files.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-arch/rar < 3.7.0_beta1 >= 3.7.0_beta1
2 app-arch/unrar < 3.7.3 >= 3.7.3
-------------------------------------------------------------------
2 affected packages on all of their supported architectures.
-------------------------------------------------------------------
Description
===========
RAR and UnRAR contain a boundary error when processing
password-protected archives that could result in a stack-based buffer
overflow.
Impact
======
A remote attacker could entice a user to process a specially crafted
password-protected archive and execute arbitrary code with the rights
of the user uncompressing the archive.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All UnRAR users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/rar-3.7.3"
All RAR users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/rar-3.7.0_beta1"
References
==========
[ 1 ] CVE-2007-0855
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0855
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200702-04.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 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
