US-CERT Technical Cyber Security Alert TA07-151A -- Mozilla Updates for Multiple Vulnerabilities

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                    National Cyber Alert System

             Technical Cyber Security Alert TA07-151A

Mozilla Updates for Multiple Vulnerabilities

Original release date: May 31, 2007
Last revised: –
Source: US-CERT

Systems Affected

 * Mozilla Firefox
 * Mozilla Thunderbird
 * Mozilla SeaMonkey
 * Netscape Browser

Other products based on Mozilla components may also be affected.

Overview

The Mozilla web browser and derived products contain several
vulnerabilities, the most severe of which could allow a remote
attacker to execute arbitrary code on an affected system.

I. Description

Mozilla has released new versions of Firefox, Thunderbird, and
SeaMonkey to address several vulnerabilities. Further details about
these vulnerabilities are available from Mozilla and the Vulnerability
Notes Database. An attacker could exploit these vulnerabilities by
convincing a user to view a specially-crafted HTML document, such as a
web page or an HTML email message.

Support for Firefox 1.5 is scheduled to end in June 2007. According to
Mozilla:

   Firefox 1.5.0.x will be maintained with security and stability
   updates until June 2007. All users are strongly encouraged to
   upgrade to Firefox 2.

II. Impact

While the impacts of the individual vulnerabilities vary, the most
severe could allow a remote, unauthenticated attacker to execute
arbitrary code on a vulnerable system. An attacker may also be able to
cause a denial of service.

III. Solution

Upgrade

These vulnerabilities are addressed in Mozilla Firefox 2.0.0.4,
Firefox 1.5.0.12, Thunderbird 2.0.0.4, Thunderbird 1.5.0.12,
SeaMonkey 1.0.9, SeaMonkey 1.1.2. By default, Mozilla Firefox,
Thunderbird, and SeaMonkey automatically check for updates.

IV. References

 * US-CERT Vulnerability Notes -
   <http://www.kb.cert.org/vuls/byid?searchview&query=mozilla_20070531>

 * Securing Your Web Browser -
   <http://www.us-cert.gov/reading_room/securing_browser/browser_security.html#Mozilla_Firefox>

 * Mozilla Foundation Security Advisories -
   <http://www.mozilla.org/security/announce/>

 * Known Vulnerabilities in Mozilla Products -
   <http://www.mozilla.org/projects/security/known-vulnerabilities.html>

 * Mozilla Hall of Fame -
   <http://www.mozilla.org/university/HOF.html>

 * Site Controls -
   <http://browser.netscape.com/ns8/help/options-site.jsp>

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The most recent version of this document can be found at:

 <http://www.us-cert.gov/cas/techalerts/TA07-151A.html>

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Feedback can be directed to US-CERT Technical Staff. Please send
email to <[email protected]> with "TA07-151A Feedback VU#751636" in the
subject.

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Produced 2007 by US-CERT, a government organization.

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Revision History

May 31, 2007: Initial release

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