- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200903-38 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Squid: Multiple Denial of Service vulnerabilities Date: March 24, 2009 Bugs: #216319, #257585 ID: 200903-38 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities have been found in Squid which allow for remote Denial of Service attacks. Background ========== Squid is a full-featured web proxy cache. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-proxy/squid < 2.7.6 >= 2.7.6 Description =========== * The arrayShrink function in lib/Array.c can cause an array to shrink to 0 entries, which triggers an assert error. NOTE: this issue is due to an incorrect fix for CVE-2007-6239 (CVE-2008-1612). * An invalid version number in a HTTP request may trigger an assertion in HttpMsg.c and HttpStatusLine.c (CVE-2009-0478). Impact ====== The issues allows for Denial of Service attacks against the service via an HTTP request with an invalid version number and other specially crafted requests. 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 ">=net-proxy/squid-2.7.6" References ========== [ 1 ] CVE-2007-6239 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6239 [ 2 ] CVE-2008-1612 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1612 [ 3 ] CVE-2009-0478 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0478 [ 4 ] GLSA-200801-05 http://www.gentoo.org/security/en/glsa/glsa-200801-05.xml Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200903-38.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 2009 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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