- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201101-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: IO::Socket::SSL: Certificate validation error Date: January 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 ------------------------------------------------------------------- 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