Multiple Security Vulnerabilities in Firefox Versions Prior to 3.5b4 May Allow Execution of Arbitrary Code or Access to Unauthorized Data

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Multiple Security Vulnerabilities in Firefox Versions Prior to 3.5b4 May Allow Execution of Arbitrary Code or Access to Unauthorized Data

1. Impact

Multiple security vulnerabilities with varying impacts affect Firefox (see firefox(1)) versions prior to 3.5b4 as shipped with OpenSolaris. These vulnerabilities may allow an unprivileged remote user to execute arbitrary code on the system where Firefox is being run, cause a Denial of Service (DoS) crash to the Firefox application, gain unauthorized access to sensitive data, execute arbitrary scripting code within a user's browsing session via Cross-Site Scripting (XSS) exploits to read or modify data from other web sites, obtain sensitive data from the user or information stored in cookies, or to perform Cross-Site Request Forgery (CSRF) attacks.

Additional vulnerabilities may allow a remote user to mislead a Firefox user into incorrectly trusting a site by providing a URL in the location bar which may appear to be another URL, or to bypass various security policies that are active in the browser to perform unauthorized activities such as reading local files or initiating network connections.

The following URL provides additional details about the vulnerabilities addressed in Firefox versions prior to 3.5b4.

http://www.mozilla.org/security/known-vulnerabilities/firefox30.html

The Mozilla advisories that describe the vulnerabilities are as follows:

MFSA2009-14   MFSA2009-16   MFSA2009-17   MFSA2009-18   MFSA2009-19
MFSA2009-20   MFSA2009-21   MFSA2009-22   MFSA2009-25   MFSA2009-27
MFSA2009-28   MFSA2009-29   MFSA2009-30   MFSA2009-31   MFSA2009-32
MFSA2009-36

The CVE identifiers that pertain to this security issue are as follows:


2. Contributing Factors

These issues can occur in the following releases:

SPARC Platform

• OpenSolaris based upon builds snv_95 through snv_114

x86 Platform

• OpenSolaris based upon builds snv_95 through snv_114

Note: Solaris 8 and 9 do not include Firefox and therefore are not impacted by these issues. Solaris 10 and OpenSolaris prior to snv_95 do not ship Firefox 3.x, but the Firefox version 2.x that is included may be impacted, in which case a separate Sun Alert describing the resolution for Solaris 10 will be published.
     
OpenSolaris distributions may include additional bug fixes above and beyond the build from which it was derived. The base build can be derived as follows:

$ uname -v
snv_95

3. Symptoms

There are no predictable symptoms that would indicate the described issues have occurred.

4. Workaround

The issue described in MFSA-2009-32 and some of the issues in MFSA-2009-14 can be worked around by disabling JavaScript using the following method:


The issue described in MFSA-2009-28 can be worked around by disabling Java, using the following method:


There are no workarounds for the other issues. Please see the Resolution section below.

5. Resolution

These issues are addressed in the following releases:
 
SPARC Platform

• OpenSolaris based upon build snv_115 or later 

x86 Platform

• OpenSolaris based upon build snv_115 or later

For more information on Security Sun Alerts, see Technical Instruction ID 213557.

This Sun Alert notification is being provided to you on an "AS IS" basis. This Sun Alert notification may contain information provided by third parties. The issues described in this Sun Alert notification may or may not impact your system(s). Sun makes no representations, warranties, or guarantees as to the information contained herein. ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN. This Sun Alert notification contains Sun proprietary and confidential information. It is being provided to you pursuant to the provisions of your agreement to purchase services from Sun, or, if you do not have such an agreement, the Sun.com Terms of Use. This Sun Alert notification may only be used for the purposes contemplated by these agreements.

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