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[ GLSA 200509-11 ] Mozilla Suite, Mozilla Firefox: Buffer overflow
From: Thierry Carrez <koon () gentoo org>
Date: Sun, 18 Sep 2005 21:44:22 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200509-11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Mozilla Suite, Mozilla Firefox: Buffer overflow Date: September 18, 2005 Bugs: #105396 ID: 200509-11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Mozilla Suite and Firefox are vulnerable to a buffer overflow that might be exploited 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. They both support Internationalized Domain Names (IDN), which are domain names represented by local language characters. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 www-client/mozilla-firefox <= 1.0.6-r6 >= 1.0.6-r7 2 www-client/mozilla <= 1.7.11-r2 >= 1.7.11-r3 3 www-client/mozilla-firefox-bin <= 1.0.6-r2 Vulnerable! 4 www-client/mozilla-bin <= 1.7.11 Vulnerable! ------------------------------------------------------------------- NOTE: Certain packages are still vulnerable. Users should migrate to another package if one is available or wait for the existing packages to be marked stable by their architecture maintainers. ------------------------------------------------------------------- 4 affected packages on all of their supported architectures. ------------------------------------------------------------------- Description =========== The Mozilla Suite and Firefox are both vulnerable to a buffer overflow while processing hostnames containing multiple hyphens. Note that browsers that have disabled IDN support are immune to this flaw. Impact ====== A remote attacker could setup a malicious site and entice a victim to visit it, triggering the buffer overflow and potentially resulting in the execution of arbitrary code with the victim's privileges. Workaround ========== You can disable the IDN support by opening the "about:config" page in the browser and manually toggling the "network.IDN" property to "false". Alternatively, you can install a security patch by following the patching instructions given in References. Resolution ========== All Mozilla Firefox users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-client/mozilla-firefox-1.0.6-r7" All Mozilla Suite users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-client/mozilla-1.7.11-r3" There are no fixed Mozilla Firefox or Mozilla Suite binaries yet. Users of the mozilla-bin or mozilla-firefox-bin packages should either switch to the source-based versions or apply the workaround. References ========== [ 1 ] CAN-2005-2871 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2871 [ 2 ] Mozilla Foundation patching instructions https://addons.mozilla.org/messages/307259.html Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200509-11.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
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- [ GLSA 200509-11 ] Mozilla Suite, Mozilla Firefox: Buffer overflow Thierry Carrez (Sep 18)