- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201405-16 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Mono: Denial of Service Date: May 18, 2014 Bugs: #433768 ID: 201405-16 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A hash collision vulnerability in Mono allows remote attackers to cause a Denial of Service condition. Background ========== Mono is an open source implementation of Microsoft's .NET Framework. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-lang/mono < 2.10.9-r2 >= 2.10.9-r2 Description =========== Mono does not properly randomize hash functions for form posts to protect against hash collision attacks. Impact ====== A remote attacker could send specially crafted parameters, possibly resulting in a Denial of Service condition. Workaround ========== There is no known workaround at this time. Resolution ========== All Mono users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-lang/mono-2.10.9-r2" References ========== [ 1 ] CVE-2012-3543 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3543 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201405-16.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 2014 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