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[gentoo-announce] [ GLSA 201101-06 ] IO::Socket::SSL: Certificate validation error

Posted on 16 January 2011
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 201101-06
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http://security.gentoo.org/
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Severity: Normal
Title: IO::Socket::SSL: Certificate validation error
Date: January 16, 2011
Bugs: #276360
ID: 201101-06

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Synopsis
========
An error in the hostname matching of IO::Socket::SSL might enable
remote attackers to conduct man-in-the-middle attacks.

Background
==========
IO::Socket::SSL is a Perl class implementing an object oriented
interface to SSL sockets.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-perl/IO-Socket-SSL < 1.26 >= 1.26

Description
===========
The vendor reported that IO::Socket::SSL does not properly handle
Common Name (CN) fields.

Impact
======
A remote attacker might employ a specially crafted certificate to
conduct man-in-the-middle attacks on SSL connections made using
IO::Socket::SSL.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All IO::Socket::SSL users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-perl/IO-Socket-SSL-1.26"

References
==========
[ 1 ] CVE-2009-3024
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3024

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

http://security.gentoo.org/glsa/glsa-201101-06.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
https://bugs.gentoo.org.

License
=======
Copyright 2011 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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