GLSA 201101-06: IO::Socket::SSL: Certificate validation error

http://security.gentoo.org/

Severity:	normal
Title:	IO::Socket::SSL: Certificate validation error
Date:	01/16/2011
Bugs:	#276360
ID:	201101-06

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	Architecture(s)
dev-perl/IO-Socket-SSL	< 1.26	>= 1.26	All supported architectures

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

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.