===================================================================== CERT-Renater Note d'Information No. 2010/VULN514 _____________________________________________________________________ DATE : 10/12/2010 HARDWARE PLATFORM(S) : / OPERATING SYSTEM(S) : System running Firefox versions prior to 3.5.16, 3.6.13, SeaMonkey versions prior to 2.0.11, Thunderbird versions prior to 3.1.7, 3.0.11. ====================================================================== http://www.mozilla.org/security/announce/2010/mfsa2010-84.html http://www.mozilla.org/security/announce/2010/mfsa2010-83.html http://www.mozilla.org/security/announce/2010/mfsa2010-82.html http://www.mozilla.org/security/announce/2010/mfsa2010-81.html http://www.mozilla.org/security/announce/2010/mfsa2010-79.html http://www.mozilla.org/security/announce/2010/mfsa2010-78.html http://www.mozilla.org/security/announce/2010/mfsa2010-77.html http://www.mozilla.org/security/announce/2010/mfsa2010-76.html http://www.mozilla.org/security/announce/2010/mfsa2010-75.html http://www.mozilla.org/security/announce/2010/mfsa2010-74.html ______________________________________________________________________ Mozilla Foundation Security Advisory 2010-84 Title: XSS hazard in multiple character encodings Impact: Moderate Announced: December 9, 2010 Reporter: Yosuke Hasegawa, Masatoshi Kimura Products: Firefox, SeaMonkey Fixed in: Firefox 3.6.13 Firefox 3.5.16 SeaMonkey 2.0.11 Description Security researchers Yosuke Hasegawa and Masatoshi Kimura reported that the x-mac-arabic, x-mac-farsi and x-mac-hebrew character encodings are vulnerable to XSS attacks due to some characters being converted to angle brackets when displayed by the rendering engine. Sites using these character encodings would thus be potentially vulnerable to script injection attacks if their script filtering code fails to strip out these specific characters. References * https://bugzilla.mozilla.org/show_bug.cgi?id=601429 * CVE-2010-3770 _______________________________________________________________________ Mozilla Foundation Security Advisory 2010-83 Title: Location bar SSL spoofing using network error page Impact: High Announced: December 9, 2010 Reporter: Michal Zalewski Products: Firefox, SeaMonkey Fixed in: Firefox 3.6.13 Firefox 3.5.16 SeaMonkey 2.0.11 Description Google security researcher Michal Zalewski reported that when a window was opened to a site resulting in a network or certificate error page, the opening site could access the document inside the opened window and inject arbitrary content. An attacker could use this bug to spoof the location bar and trick a user into thinking they were on a different site than they actually were. References * https://bugzilla.mozilla.org/show_bug.cgi?id=602780 * CVE-2010-3774 Portions of this content are ©1998–2010 by individual mozilla.org contributors. Content available under a Creative Commons license. ____________________________________________________________________ Mozilla Foundation Security Advisory 2010-82 Title: Incomplete fix for CVE-2010-0179 Impact: Critical Announced: December 9, 2010 Reporter: moz_bug_r_a4 Products: Firefox, SeaMonkey Fixed in: Firefox 3.6.13 Firefox 3.5.16 SeaMonkey 2.0.11 Description Mozilla security researcher moz_bug_r_a4 reported that the fix for CVE-2010-0179 could be circumvented permitting the execution of arbitrary JavaScript with chrome privileges. References * https://bugzilla.mozilla.org/show_bug.cgi?id=554449 * CVE-2010-3773 ______________________________________________________________________ Mozilla Foundation Security Advisory 2010-81 Title: Integer overflow vulnerability in NewIdArray Impact: Critical Announced: December 9, 2010 Reporter: regenrecht Products: Firefox, SeaMonkey Fixed in: Firefox 3.6.13 Firefox 3.5.16 SeaMonkey 2.0.11 Description Security researcher regenrecht reported via TippingPoint's Zero Day Initiative that JavaScript arrays were vulnerable to an integer overflow vulnerability. The report demonstrated that an array could be constructed containing a very large number of items such that when memory was allocated to store the array items, the integer value used to calculate the buffer size would overflow resulting in too small a buffer being allocated. Subsequent use of the array object could then result in data being written past the end of the buffer and causing memory corruption. References * https://bugzilla.mozilla.org/show_bug.cgi?id=599468 * CVE-2010-3767 Portions of this content are ©1998–2010 by individual mozilla.org contributors. Content available under a Creative Commons license. _______________________________________________________________________ Mozilla Foundation Security Advisory 2010-80 Title: Use-after-free error with nsDOMAttribute MutationObserver Impact: Critical Announced: December 9, 2010 Reporter: regenrecht Products: Firefox, SeaMonkey Fixed in: Firefox 3.6.13 Firefox 3.5.16 SeaMonkey 2.0.11 Description Security researcher regenrecht reported via TippingPoint's Zero Day Initiative that a nsDOMAttribute node can be modified without informing the iterator object responsible for various DOM traversals. This flaw could lead to a inconsistent state where the iterator points to an object it believes is part of the DOM but actually points to some other object. If such an object had been deleted and its memory reclaimed by the system, then the iterator could be used to call into attacker-controlled memory. References * https://bugzilla.mozilla.org/show_bug.cgi?id=590771 * CVE-2010-3766 ______________________________________________________________________ Mozilla Foundation Security Advisory 2010-79 Title: Java security bypass from LiveConnect loaded via data: URL meta refresh Impact: Critical Announced: December 9, 2010 Reporter: Gregory Fleischer Products: Firefox, SeaMonkey Fixed in: Firefox 3.6.13 Firefox 3.5.16 SeaMonkey 2.0.11 Description Security researcher Gregory Fleischer reported that when a Java LiveConnect script was loaded via a data: URL which redirects via a meta refresh, then the resulting plugin object was created with the wrong security principal and thus received elevated privileges such as the abilities to read local files, launch processes, and create network connections. References * Java LiveConnect bugs * CVE-2010-3775 Portions of this content are ©1998–2010 by individual mozilla.org contributors. Content available under a Creative Commons license. ________________________________________________________________________ Mozilla Foundation Security Advisory 2010-78 Title: Add support for OTS font sanitizer Impact: Critical Announced: December 9, 2010 Reporter: Marc Schoenefeld, Christoph Diehl Products: Firefox, Thunderbird, SeaMonkey Fixed in: Firefox 3.6.13 Firefox 3.5.16 Thunderbird 3.1.7 Thunderbird 3.0.11 SeaMonkey 2.0.11 Description Mozilla added the OTS font sanitizing library to prevent downloadable fonts from exposing vulnerabilities in the underlying OS font code. This library mitigates against several issues independently reported by Red Hat Security Response Team member Marc Schoenefeld and Mozilla security researcher Christoph Diehl. References * https://bugzilla.mozilla.org/show_bug.cgi?id=527276 * CVE-2010-3768 ______________________________________________________________________ Mozilla Foundation Security Advisory 2010-77 Title: Crash and remote code execution using HTML tags inside a XUL tree Impact: Critical Announced: December 9, 2010 Reporter: wushi Products: Firefox, SeaMonkey Fixed in: Firefox 3.6.13 Firefox 3.5.16 SeaMonkey 2.0.11 Description Security researcher wushi of team509 reported that when a XUL tree had an HTML
element nested inside a element then code attempting to display content in the XUL tree would incorrectly treat the
element as a parent node to tree content underneath it resulting in incorrect indexes being calculated for the child content. These incorrect indexes were used in subsequent array operations which resulted in writing data past the end of an allocated buffer. An attacker could use this issue to crash a victim's browser and run arbitrary code on their machine. References * https://bugzilla.mozilla.org/show_bug.cgi?id=594547 * CVE-2010-3772 Portions of this content are ©1998–2010 by individual mozilla.org contributors. Content available under a Creative Commons license. _______________________________________________________________________ Mozilla Foundation Security Advisory 2010-76 Title: Chrome privilege escalation with window.open and element Impact: Critical Announced: December 9, 2010 Reporter: echo Products: Firefox, SeaMonkey Fixed in: Firefox 3.6.13 Firefox 3.5.16 SeaMonkey 2.0.11 Description Security researcher echo reported that a web page could open a window with an about:blank location and then inject an element into that page which upon submission would redirect to a chrome: document. The effect of this defect was that the original page would wind up with a reference to a chrome-privileged object, the opened window, which could be leveraged for privilege escalation attacks. Mozilla security researcher moz_bug_r_a4 provided proof-of-concept code demonstrating how the above vulnerability could be used to run arbitrary code with chrome privileges. References * https://bugzilla.mozilla.org/show_bug.cgi?id=609437 * CVE-2010-3771 ______________________________________________________________________ Mozilla Foundation Security Advisory 2010-75 Title: Buffer overflow while line breaking after document.write with long string Impact: Critical Announced: December 9, 2010 Reporter: Dirk Heinrich Products: Firefox, Thunderbird, SeaMonkey Fixed in: Firefox 3.6.13 Firefox 3.5.16 Thunderbird 3.1.7 Thunderbird 3.0.11 SeaMonkey 2.0.11 Description Dirk Heinrich reported that on Windows platforms when document.write() was called with a very long string a buffer overflow was caused in line breaking routines attempting to process the string for display. Such cases triggered an invalid read past the end of an array causing a crash which an attacker could potentially use to run arbitrary code on a victim's computer. References * https://bugzilla.mozilla.org/show_bug.cgi?id=608336 * CVE-2010-3769 _______________________________________________________________________ Mozilla Foundation Security Advisory 2010-74 Title: Miscellaneous memory safety hazards (rv:1.9.2.13/ 1.9.1.16) Impact: Critical Announced: December 9, 2010 Reporter: Mozilla developers and community Products: Firefox, Thunderbird, SeaMonkey Fixed in: Firefox 3.6.13 Firefox 3.5.16 Thunderbird 3.1.7 Thunderbird 3.0.11 SeaMonkey 2.0.11 Description Mozilla developers identified and fixed several memory safety bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these bugs showed evidence of memory corruption under certain circumstances, and we presume that with enough effort at least some of these could be exploited to run arbitrary code. References Jesee Ruderman, Andreas Gal, Nils, and Brian Hackett reported memory safety problems that affected Firefox 3.6 and Firefox 3.5. * Memory safety bugs - Firefox 3.6, Firefox 3.5 * CVE-2010-3776 Igor Bukanov reported a memory safety problem that was fixed in Firefox 3.6 only. * https://bugzilla.mozilla.org/show_bug.cgi?id=599607 * CVE-2010-3777 Jesse Ruderman reported a crash which affected Firefox 3.5 only. * https://bugzilla.mozilla.org/show_bug.cgi?id=411835 * CVE-2010-3778 ====================================================================== ========================================================= Les serveurs de référence du CERT-Renater http://www.urec.fr/securite http://www.cru.fr/securite http://www.renater.fr ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 23 - 25 Rue Daviel | fax : 01-53-94-20-41 + + 75013 Paris | email: certsvp@renater.fr + =========================================================