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Highly critical

Mozilla Firefox 2 Multiple Vulnerabilities

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Release Date:  2008-12-17    Last Update:  2008-12-19    Views:  9,737

Secunia Advisory SA33184

Where:

From remote

Impact:

Security Bypass, Cross Site Scripting, Exposure of sensitive information, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Some vulnerabilities have been reported in Mozilla Firefox, which can be exploited by malicious people to bypass certain security restrictions, disclose sensitive information, conduct cross-site scripting attacks, or potentially compromise a user's system.

1) Multiple errors in the layout engine can be exploited to corrupt memory and potentially execute arbitrary code.

2) An error in the processing of XBL bindings can be exploited to bypass the same-origin policy and read data from a target document in another domain.

Successful exploitation of this vulnerability requires that the target document contains a "<bindingsi>" element and that the "id" of the read binding is known.

3) An error in the feed preview functionality can be exploited to execute arbitrary JavaScript code with chrome privileges.

This is related to vulnerability #3 in:
SA31984

4) An error exists when processing "XMLHttpRequest" requests to a web server which redirects the browser via a 302 HTTP status code. This can be exploited to bypass the same-origin policy and disclose sensitive information from another domain.

5) An error exists when processing JavaScript URLs redirecting the browser to another domain returning non-JavaScript data. This can be exploited to disclose sensitive information from the other domain via a "window.onerror" event handler.

6) An error when processing URLs starting with whitespace or certain control characters can be exploited to output a malformed URL when rendering a hyperlink.

7) An error in the CSS parser when processing "\0" sequences can be exploited to potentially bypass third party script sanitation routines.

8) An error when processing an XBL binding attached to an unloaded document can be exploited to bypass the same-origin policy and execute arbitrary JavaScript code in a different domain.

9) Two errors can be exploited to pollute "XPCNativeWrappers" and execute arbitrary JavaScript code with chrome privileges.

10) Several errors in the session restore feature can be exploited to execute arbitrary JavaScript code in a different domain or with chrome privileges.

The vulnerabilities are reported in versions prior to 2.0.0.19.


Solution:
Update to version 2.0.0.20 (Windows), or 2.0.0.19 or later (other platforms).

Further details available to Secunia VIM customers

Provided and/or discovered by:
5) Chris Evans of Google Security

The vendor credits:
1) Daniel Veditz, Jesse Ruderman, and David Baron
2) Boris Zbarsky
3, 8-10) moz_bug_r_a4
4) Marius Schilder of Google Security
6) Chip Salzenberg, Justin Schuh, Tom Cross, and Peter William
7) Kojima Hajime

Original Advisory:
Mozilla:
http://www.mozilla.org/security/announce/2008/mfsa2008-60.html
http://www.mozilla.org/security/announce/2008/mfsa2008-61.html
http://www.mozilla.org/security/announce/2008/mfsa2008-62.html
http://www.mozilla.org/security/announce/2008/mfsa2008-64.html
http://www.mozilla.org/security/announce/2008/mfsa2008-65.html
http://www.mozilla.org/security/announce/2008/mfsa2008-66.html
http://www.mozilla.org/security/announce/2008/mfsa2008-67.html
http://www.mozilla.org/security/announce/2008/mfsa2008-68.html
http://www.mozilla.org/security/announce/2008/mfsa2008-69.html

Chris Evans:
http://scary.beasts.org/security/CESA-2008-011.html

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Mozilla Firefox 2 Multiple Vulnerabilities

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