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Gentoo Linux Security Advisory GLSA 200509-11 |
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http://security.gentoo.org/ |
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|
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Severity: Normal |
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Title: Mozilla Suite, Mozilla Firefox: Buffer overflow |
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Date: September 18, 2005 |
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Bugs: #105396 |
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ID: 200509-11 |
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|
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|
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Synopsis |
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======== |
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|
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Mozilla Suite and Firefox are vulnerable to a buffer overflow that |
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might be exploited to execute arbitrary code. |
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|
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Background |
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========== |
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|
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The Mozilla Suite is a popular all-in-one web browser that includes a |
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mail and news reader. Mozilla Firefox is the next-generation browser |
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from the Mozilla project. They both support Internationalized Domain |
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Names (IDN), which are domain names represented by local language |
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characters. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 www-client/mozilla-firefox <= 1.0.6-r6 >= 1.0.6-r7 |
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2 www-client/mozilla <= 1.7.11-r2 >= 1.7.11-r3 |
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3 www-client/mozilla-firefox-bin <= 1.0.6-r2 Vulnerable! |
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4 www-client/mozilla-bin <= 1.7.11 Vulnerable! |
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------------------------------------------------------------------- |
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NOTE: Certain packages are still vulnerable. Users should migrate |
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to another package if one is available or wait for the |
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existing packages to be marked stable by their |
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architecture maintainers. |
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------------------------------------------------------------------- |
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4 affected packages on all of their supported architectures. |
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------------------------------------------------------------------- |
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|
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Description |
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=========== |
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|
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The Mozilla Suite and Firefox are both vulnerable to a buffer overflow |
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while processing hostnames containing multiple hyphens. Note that |
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browsers that have disabled IDN support are immune to this flaw. |
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|
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Impact |
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====== |
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|
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A remote attacker could setup a malicious site and entice a victim to |
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visit it, triggering the buffer overflow and potentially resulting in |
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the execution of arbitrary code with the victim's privileges. |
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|
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Workaround |
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========== |
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|
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You can disable the IDN support by opening the "about:config" page in |
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the browser and manually toggling the "network.IDN" property to |
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"false". Alternatively, you can install a security patch by following |
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the patching instructions given in References. |
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|
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Resolution |
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========== |
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|
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All Mozilla Firefox users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose |
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">=www-client/mozilla-firefox-1.0.6-r7" |
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|
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All Mozilla Suite users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=www-client/mozilla-1.7.11-r3" |
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|
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There are no fixed Mozilla Firefox or Mozilla Suite binaries yet. Users |
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of the mozilla-bin or mozilla-firefox-bin packages should either switch |
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to the source-based versions or apply the workaround. |
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|
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References |
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========== |
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|
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[ 1 ] CAN-2005-2871 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2871 |
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[ 2 ] Mozilla Foundation patching instructions |
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https://addons.mozilla.org/messages/307259.html |
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|
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Availability |
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============ |
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|
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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|
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http://security.gentoo.org/glsa/glsa-200509-11.xml |
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|
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Concerns? |
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========= |
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|
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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|
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License |
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======= |
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|
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Copyright 2005 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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http://creativecommons.org/licenses/by-sa/2.0 |