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TLP:WHITE

Alert (TA06-312A)

Mozilla Updates for Multiple Vulnerabilities

Original release date: November 08, 2006 | Last revised: December 20, 2006

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.

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.

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.

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.

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.

References


Revision History

  • November 08, 2006: Initial release
    December 20, 2006: Corrected typo

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