Vulnerability Note VU#414240

Mozilla Mail vulnerable to buffer overflow via "writeGroup()" function in "nsVCardObj.cpp"

Overview

Mozilla Mail contains a vulnerability in the display routines for VCards. By sending an email message with a crafted VCard, a remote attacker may be able to execute arbitrary code on the victim's machine with the privileges of the current user.

I. Description

Mozilla Mail contains a stack overflow vulnerability in the display routines for VCards. By sending an email message with a crafted VCard, a remote attacker may be able to execute arbitrary code on the victim's machine with the privileges of the current user. This can be exploited in the preview mode as well.

II. Impact

A remote attacker may be able to execute arbitrary code on the victim's machine with the privileges of the current user.

III. Solution

This vulnerability is resolved in Firefox Preview Release, Mozilla 1.7.3, and Thunderbird 0.8.

Until a patch or upgrade can be performed, Mozilla recommends the following workaround; Disable in-line display of attachments, don't open VCard attachments.

Systems Affected

Vendor	Status	Date Updated
Mozilla	Not Vulnerable	17-Sep-2004

References

http://secunia.com/advisories/12526/
http://bugzilla.mozilla.org/show_bug.cgi?id=257314
http://www.mozilla.org/projects/security/known-vulnerabilities.html
http://www.securitytracker.com/alerts/2004/Sep/1011317.html
http://www.securitytracker.com/alerts/2004/Sep/1011318.html

Credit

Thanks to Georgi Guninski for reporting this vulnerability.

This document was written by Jason A Rafail.

Other Information

Date Public	09/14/2004
Date First Published	09/17/2004 02:03:01 PM
Date Last Updated	09/17/2004
CERT Advisory
CVE Name
US-CERT Technical Alerts
Metric	32.40
Document Revision	8

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