Mozilla products vulnerable to memory corruption via a particular sequence of HTML tags

Overview

A vulnerability in the way Mozilla products and derivative programs handle certain HTML tags could allow a remote attacker to execute arbitrary code on a vulnerable system.

Description

A vulnerability has been discovered in the way that Mozilla and derived programs handle certain HTML tags. Mozilla Foundation Secuity Advisory 2006-18 states the following:

A particular sequence of HTML tags that reliably crash Mozilla clients was reported by an anonymous researcher via TippingPoint and the Zero Day Initiative. The crash is due to memory corruption that can be exploited to run arbitrary code.

Mozilla mail clients will crash on the tag sequence, but without the ability to run scripts to fill memory with the attack code it may not be possible for an attacker to exploit this crash.

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Impact

A remote attacker may be able to crash a vulnerable program or run code of their choosing on an affected system. The attacker-supplied code would be executed with the permissions of the user running the vulnerable program.

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Solution

Upgrade

The Mozilla Foundation has published Mozilla Foundation Security Advisory 2006-18 in response to this issue. Users are encouraged to review this advisory and upgrade to the fixed versions of the products it describes.

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Vendor Information

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Mozilla, Inc. __ Affected

Notified: April 17, 2006 Updated: April 17, 2006

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The Mozilla Foundation has published Mozilla Foundation Security Advisory 2006-18 in response to this issue. Users are encouraged to review this advisory and upgrade to the fixed versions of the products it describes.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23736934 Feedback>).

Red Hat, Inc. __ Affected

Updated: April 17, 2006

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

Red Hat, Inc. has pubished Red Hat Security Advisory RHSA-2006:0328 in response to this issue. Users are encouraged to review this advisory and apply the patches it refers to.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23736934 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://www.mozilla.org/security/announce/2006/mfsa2006-18.html&gt;
• <https://bugzilla.mozilla.org/show_bug.cgi?id=320182&gt;
• <https://bugzilla.mozilla.org/show_bug.cgi?id=269095&gt;

Acknowledgements

Thanks to Mozilla Foundation Security Advisory for reporting this vulnerability. The Mozilla Foundation, in turn, credits an anonymous researcher via TippingPoint and the Zero Day Initiative

This document was written by Chad Dougherty based on information supplied by the Mozilla Foundation.

Other Information

CVE IDs:	CVE-2006-0749
Severity Metric:	16.20 Date Public: