---------------------------------------------------------------------- Meet Secunia @ Microsoft Management Summit (MMS) in Las Vegas, USA (21-25 March). http://secunia.com/company/events/mms_2011/ ---------------------------------------------------------------------- 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: * Last Update * Popularity * Comments * Criticality Level * Impact * Where * Solution Status * Operating System / Software * CVE Reference(s) http://secunia.com/advisories/43550/ ONLY AVAILABLE IN CUSTOMER AREA: * Authentication Level * Report Reliability * Secunia PoC * Secunia Analysis * Systems Affected * Approve Distribution * Remediation Status * Secunia CVSS Score * CVSS 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/ ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities. 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