- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200505-11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Mozilla Suite, Mozilla Firefox: Remote compromise Date: May 15, 2005 Bugs: #91859, #92393, #92394 ID: 200505-11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Several vulnerabilities in the Mozilla Suite and Firefox allow an attacker to conduct cross-site scripting attacks or to execute arbitrary code. Background ========== The Mozilla Suite is a popular all-in-one web browser that includes a mail and news reader. Mozilla Firefox is the next-generation browser from the Mozilla project. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 www-client/mozilla-firefox < 1.0.4 >= 1.0.4 2 www-client/mozilla-firefox-bin < 1.0.4 >= 1.0.4 3 www-client/mozilla < 1.7.8 >= 1.7.8 4 www-client/mozilla-bin < 1.7.8 >= 1.7.8 ------------------------------------------------------------------- 4 affected packages on all of their supported architectures. ------------------------------------------------------------------- Description =========== The Mozilla Suite and Firefox do not properly protect "IFRAME" JavaScript URLs from being executed in context of another URL in the history list (CAN-2005-1476). The Mozilla Suite and Firefox also fail to verify the "IconURL" parameter of the "InstallTrigger.install()" function (CAN-2005-1477). Michael Krax and Georgi Guninski discovered that it is possible to bypass JavaScript-injection security checks by wrapping the javascript: URL within the view-source: or jar: pseudo-protocols (MFSA2005-43). Impact ====== A malicious remote attacker could use the "IFRAME" issue to execute arbitrary JavaScript code within the context of another website, allowing to steal cookies or other sensitive data. By supplying a javascript: URL as the "IconURL" parameter of the "InstallTrigger.Install()" function, a remote attacker could also execute arbitrary JavaScript code. Combining both vulnerabilities with a website which is allowed to install software or wrapping javascript: URLs within the view-source: or jar: pseudo-protocols could possibly lead to the execution of arbitrary code with user privileges. Workaround ========== Affected systems can be protected by disabling JavaScript. However, we encourage Mozilla Suite or Mozilla Firefox users to upgrade to the latest available version. Resolution ========== All Mozilla Firefox users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-client/mozilla-firefox-1.0.4" All Mozilla Firefox binary users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-client/mozilla-firefox-bin-1.0.4" All Mozilla Suite users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-client/mozilla-1.7.8" All Mozilla Suite binary users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-client/mozilla-bin-1.7.8" References ========== [ 1 ] CAN-2005-1476 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1476 [ 2 ] CAN-2005-1477 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1477 [ 3 ] Mozilla Foundation Security Advisory 2005-43 http://www.mozilla.org/security/announce/mfsa2005-43.html Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200505-11.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 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