GLSA 200904-08 OpenSSL: Denial of Service

Posted by Bob on: 04/07/2009 11:40 AM [ Print | 0 comment(s) ]

A new security update has been released for Gentoo Linux - OpenSSL: Denial of Service. Here the announcement:

Gentoo Linux Security Advisory GLSA 200904-08
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http://security.gentoo.org/
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Severity: Normal
Title: OpenSSL: Denial of Service
Date: April 07, 2009
Bugs: #263751
ID: 200904-08

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Synopsis
========

An error in OpenSSL might allow for a Denial of Service when printing
certificate details.

Background
==========

OpenSSL is an Open Source toolkit implementing the Secure Sockets Layer
(SSL v2/v3) and Transport Layer Security (TLS v1) as well as a general
purpose cryptography library.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-libs/openssl lt; 0.9.8k gt;= 0.9.8k

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

The ASN1_STRING_print_ex() function does not properly check the
provided length of a BMPString or UniversalString, leading to an
invalid memory access.

Impact
======

A remote attacker could entice a user or automated system to print a
specially crafted certificate, possibly leading to a Denial of Service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All OpenSSL users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=dev-libs/openssl-0.9.8k"

References
==========

[ 1 ] CVE-2009-0590
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0590

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

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

http://security.gentoo.org/glsa/glsa-200904-08.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