November 2006

ID: 00775
Ref: 734/2006
Date: 09 November 2006:14:45:41
Version: 1

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Title: Technical Cyber Security Alert: TA06-312A - Mozilla Updates for Multiple Vulnerabilities
Abstract: Several vulnerabilities have been reported in the Mozilla web browser and derived products. Mozilla has released three security advisories to describe the vulnerabilities.
Vendors affected: US-CERT
Operating systems affected: US-CERT
Applications affected: US-CERT

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Title
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Technical Cyber Security Alert: TA06-312A - Mozilla Updates for Multiple Vulnerabilities

Detail
======

Several vulnerabilities have been reported in the Mozilla web browser
and derived products. Mozilla has released three security advisories
to describe the vulnerabilities.


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National Cyber Alert System

Technical Cyber Security Alert TA06-312A


Mozilla Updates for Multiple Vulnerabilities

Original release date: November 08, 2006
Last revised: --
Source: US-CERT

Systems Affected

* Mozilla SeaMonkey
* Mozilla Firefox
* Mozilla Thunderbird
* Netscape web browser


Overview

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


I. Description

Several vulnerabilities have been reported in the Mozilla web browser
and derived products. Mozilla has released three security advisories
to describe the vulnerabilities:

Mozilla Foundation Security Advisory 2006-67 addresses a remote
code execution vulnerability in the way JavaScript is handled by
Firefox, Thunderbird, and SeaMonkey. More information can be found
in VU#714496.

Mozilla Foundation Security Advisory 2006-66 addresses a
vulnerability in the way RSA signatures are handled by Firefox,
Thunderbird, and SeaMonkey. More information can be found in
VU#335392.

Mozilla Foundation Security Advisory 2006-65 addresses three memory
corruption vulnerabilities in Firefox, Thunderbird, and SeaMonkey.
More information can be found in VU#815432, VU#390480, and
VU#495288.

Any products based on Mozilla components, specifically Gecko, may also
be affected by VU#714496, VU#815432, VU#390480, and VU#495288.

Any software that uses the Mozilla Network Security Services (NSS)
library may be affected by VU#335392.


II. Impact

The most severe impact of these vulnerabilities could allow a remote
attacker to execute arbitrary code with the privileges of the user
running the affected application. Other effects include forging an RSA
signatures and denial of service. A remote, unauthenticated attacker
could execute arbitrary code, or cause a denial of service.

Forging an RSA signature (VU#335392) may allow an attacker to craft a
TLS/SSL or email certificate that will not be detected as invalid.
This may allow that attacker to impersonate a website or email system
that relies on certificates for authentication.


III. Solution

Upgrade

These vulnerabilities are addressed in Mozilla Firefox 1.5.0.8,
Mozilla Thunderbird 1.5.0.8, and SeaMonkey 1.0.6.

According to Mozilla:

Firefox 1.5.0.x will be maintained with security and stability
updates until April 24, 2007. All users are strongly encouraged to
upgrade to Firefox 2.


IV. References

* Vulnerability Note VU#714496 -


* Vulnerability Note VU#335392 -


* Vulnerability Note VU#815432 -


* Vulnerability Note VU#390480 -


* Vulnerability Note VU#495288 -


* Mozilla Foundation Security Advisories -


* Known Vulnerabilities in Mozilla Products -


* Securing Your Web Browser -


* Mozilla Hall of Fame -


* Site Controls -



____________________________________________________________________

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


____________________________________________________________________

Feedback can be directed to US-CERT Technical Staff. Please send
email to with "TA06-312A Feedback VU#335392" in the
subject.
____________________________________________________________________

For instructions on subscribing to or unsubscribing from this
mailing list, visit .
____________________________________________________________________

Produced 2006 by US-CERT, a government organization.

Terms of use:


____________________________________________________________________


Revision History

November 08, 2006: Initial release


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