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[ GLSA 200701-06 ] w3m: Format string vulnerability
From: Raphael Marichez <falco () gentoo org>
Date: Fri, 12 Jan 2007 22:13:19 +0100
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200701-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: w3m: Format string vulnerability Date: January 12, 2007 Bugs: #159145 ID: 200701-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== w3m does not correctly handle format string specifiers in SSL certificates. Background ========== w3m is a multi-platform text-based web browser. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 www-client/w3m < 0.5.1-r4 >= 0.5.1-r4 Description =========== w3m in -dump or -backend mode does not correctly handle printf() format string specifiers in the Common Name (CN) field of an X.509 SSL certificate. Impact ====== An attacker could entice a user to visit a malicious website that would load a specially crafted X.509 SSL certificate containing "%n" or other format string specifiers, possibly resulting in the execution of arbitrary code with the rights of the user running w3m. Workaround ========== There is no known workaround at this time. Resolution ========== All w3m users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-client/w3m-0.5.1-r4" References ========== [ 1 ] CVE-2006-6772 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6772 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200701-06.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 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
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- [ GLSA 200701-06 ] w3m: Format string vulnerability Raphael Marichez (Jan 12)