- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200502-25 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Squid: Denial of Service through DNS responses Date: February 18, 2005 Bugs: #81997 ID: 200502-25 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Squid contains a bug in the handling of certain DNS responses resulting in a Denial of Service. Background ========== Squid is a full-featured Web proxy cache designed to run on Unix-like systems. It supports proxying and caching of HTTP, FTP, and other protocols, as well as SSL support, cache hierarchies, transparent caching, access control lists and many other features. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 www-proxy/squid < 2.5.8 >= 2.5.8 Description =========== Handling of certain DNS responses trigger assertion failures. Impact ====== By returning a specially crafted DNS response an attacker could cause Squid to crash by triggering an assertion failure. Workaround ========== There is no known workaround at this time. Resolution ========== All Squid users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-proxy/squid-2.5.8" References ========== [ 1 ] CAN-2005-0446 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0446 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200502-25.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@xxxxxxxxxx or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2005 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/2.0
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