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TITLE:
Mozilla Firefox / SeaMonkey Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA43550

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43550/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43550

RELEASE DATE:
2011-03-20

DISCUSS ADVISORY:
http://secunia.com/advisories/43550/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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 * Popularity
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 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/43550/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=43550

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A weakness and some vulnerabilities have been reported in Mozilla
Firefox and SeaMonkey, which can be exploited by malicious people to
conduct spoofing attacks, cross-site request forgery attacks, and
compromise a user's system.

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

2) An error when handling recursive calls to "eval()" within a
"try/catch" statement can lead to dialogs being displayed incorrectly
and returning "true" when being closed. This can e.g. be exploited to
gain escalated privileges by forcing a user into accepting certain
dialogs.

3) A use-after-free error in the js3250.dll library when processing
the "JSON.stringify()" method can be exploited to dereference an
invalid pointer in a call to the "js_HasOwnProperty()" function.

4) An error within the internal memory mapping of non-local
JavaScript variables can be exploited to cause a buffer overflow and
potentially execute arbitrary code.

5) An error within the internal string mapping of the JavaScript
engine related to an offset pointer when handling more than 64K
values can be exploited to cause an exception object to be read from
invalid memory.

6) A use-after-free error related to JavaScript "Workers" can be
exploited to dereference invalid memory and execute arbitrary code.

7) An error when allocating memory for layout objects displaying long
strings can be exploited to cause a memory corruption and execute
arbitrary code.

Note: This may only affect the Windows platform.

8) The "ParanoidFragmentSink" class does not properly filter
"javascript:" URLs and inline JavaScript, which can be exploited to
execute arbitrary JavaScript code.

Successful exploitation requires that e.g. an extension using the
function to sanitise HTML code before embedding it in a chrome
document is installed.

9) An error when decoding certain JPEG images can be exploited to
cause a buffer overflow and potentially execute arbitrary code.

Note: This does not affect the Mozilla Firefox 3.5 branch.

10) When a request initiated by the plugin received a redirect
response (307), the request including any custom headers is
incorrectly forwarded to the new location without notifying the
plugin, which can be used to e.g. bypass cross-site request forgery
protections relying on custom headers.

SOLUTION:
Update to Mozilla Firefox version 3.5.17 or 3.6.14 and Mozilla
SeaMonkey version 2.0.12.

PROVIDED AND/OR DISCOVERED BY:
3) regenrecht, via ZDI
8) Reported by the vendor

The vendor credits:
1) Jesse Ruderman, Igor Bukanov, Olli Pettay, Gary Kwong, Jeff
Walden, Henry Sivonen, Martijn Wargers, David Baron, and Marcia
Knous
2) Zach Hoffman
4, 5) Christian Holler
6) Daniel Kozlowski
7) Alex Miller
9) Jordi Chancel
10) Peleus Uhley, Adobe

ORIGINAL ADVISORY:
1) http://www.mozilla.org/security/announce/2011/mfsa2011-01.html
2) http://www.mozilla.org/security/announce/2011/mfsa2011-02.html
3) http://www.mozilla.org/security/announce/2011/mfsa2011-03.html
4) http://www.mozilla.org/security/announce/2011/mfsa2011-04.html
5) http://www.mozilla.org/security/announce/2011/mfsa2011-05.html
6) http://www.mozilla.org/security/announce/2011/mfsa2011-06.html
7) http://www.mozilla.org/security/announce/2011/mfsa2011-07.html
8) http://www.mozilla.org/security/announce/2011/mfsa2011-08.html
9) http://www.mozilla.org/security/announce/2011/mfsa2011-09.html
10) http://www.mozilla.org/security/announce/2011/mfsa2011-10.html

ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-11-103/

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
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