__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Mozilla Layout Engine Vulnerable [MSFA2007-12] May 31, 2007 17:00 GMT Number R-252 [REVISED 7 Dec 2007] ______________________________________________________________________________ PROBLEM: The Mozilla layout engine contains multiple vulnerabilities that may lead to memory corruption. PLATFORM: Firefox 2.0.0.3, 1.5.0.11 Thunderbird 2.0.0.3, 1.5.0.11 SeaMonkey 1.0.8, 1.1.1 Solaris 8, 9, 10 DAMAGE: These vulnerabilities may allow an attacker to execute code or cause a denial-of-service condition. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. May allow an attacker to execute code or ASSESSMENT: cause a denial-of-service condition. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-252.shtml ORIGINAL BULLETIN: http://www.mozilla.org/security/announce/2007/mfsa2007-12.html ADDITIONAL LINKS: http://www.sunsolve.sun.com/search/document.do?assetkey=1-26-103125-1 http://www.sunsolve.sun.com/search/document.do?assetkey=1-26-103136-1 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2007-2867 ______________________________________________________________________________ REVISION HISTORY: 12/07/2007 - revised R-252 to add links to Sun Alert ID: 103125 and 103136 for Mozilla v1.7, Solaris 8, 9, 10. [***** Start MSFA2007-12 *****] Mozilla Foundation Security Advisory 2007-12 Title: Crashes with evidence of memory corruption (rv:1.8.0.12/1.8.1.4) Impact: Critical Announced: May 30, 2007 Reporter: Mozilla developers and community Products: Firefox, Thunderbird, SeaMonkey Fixed in: Firefox 2.0.0.4 Firefox 1.5.0.12 Thunderbird 2.0.0.4 Thunderbird 1.5.0.12 SeaMonkey 1.0.9 SeaMonkey 1.1.2 Description As part of the Firefox 2.0.0.4 and 1.5.0.12 update releases Mozilla developers fixed many bugs to improve the stability of the product. Some of these crashes that 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. Note: Thunderbird shares the browser engine with Firefox and could be vulnerable if JavaScript were to be enabled in mail. This is not the default setting and we strongly discourage users from running JavaScript in mail. Without further investigation we cannot rule out the possibility that for some of these an attacker might be able to prepare memory for exploitation through some means other than JavaScript, such as large images. Workaround Upgrade to the fixed versions. Do not enable JavaScript in Thunderbird or the mail portions of SeaMonkey. References Boris Zbarsky, Eli Friedman, Georgi Guninski, Jesse Ruderman, Martijn Wargers and Olli Pettay reported crashes in the layout engine. CVE-2007-2867 https://bugzilla.mozilla.org/show_bug.cgi?id=377216 https://bugzilla.mozilla.org/show_bug.cgi?id=370360 https://bugzilla.mozilla.org/show_bug.cgi?id=372285 https://bugzilla.mozilla.org/show_bug.cgi?id=306902 https://bugzilla.mozilla.org/show_bug.cgi?id=348492 https://bugzilla.mozilla.org/show_bug.cgi?id=369150 https://bugzilla.mozilla.org/show_bug.cgi?id=369249 https://bugzilla.mozilla.org/show_bug.cgi?id=372237 https://bugzilla.mozilla.org/show_bug.cgi?id=372376 https://bugzilla.mozilla.org/show_bug.cgi?id=376223 https://bugzilla.mozilla.org/show_bug.cgi?id=336574 https://bugzilla.mozilla.org/show_bug.cgi?id=336744 https://bugzilla.mozilla.org/show_bug.cgi?id=336994 https://bugzilla.mozilla.org/show_bug.cgi?id=362708 https://bugzilla.mozilla.org/show_bug.cgi?id=369542 https://bugzilla.mozilla.org/show_bug.cgi?id=371124 https://bugzilla.mozilla.org/show_bug.cgi?id=378273 https://bugzilla.mozilla.org/show_bug.cgi?id=378325 https://bugzilla.mozilla.org/show_bug.cgi?id=374584 https://bugzilla.mozilla.org/show_bug.cgi?id=375196 Brendan Eich, Igor Bukanov, Jesse Ruderman, moz_bug_r_a4 and Wladimir Palant reported potential memory corruption in the JavaScript engine. CVE-2007-2868 https://bugzilla.mozilla.org/show_bug.cgi?id=351102 https://bugzilla.mozilla.org/show_bug.cgi?id=369666 https://bugzilla.mozilla.org/show_bug.cgi?id=367561 https://bugzilla.mozilla.org/show_bug.cgi?id=370101 https://bugzilla.mozilla.org/show_bug.cgi?id=370488 https://bugzilla.mozilla.org/show_bug.cgi?id=375183 https://bugzilla.mozilla.org/show_bug.cgi?id=367630 https://bugzilla.mozilla.org/show_bug.cgi?id=375711 https://bugzilla.mozilla.org/show_bug.cgi?id=367121 https://bugzilla.mozilla.org/show_bug.cgi?id=369714 -------------------------------------------------------------------------------- [***** End MSFA2007-12 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Mozilla for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. CIAC can be contacted at: Voice: +1 925-422-8193 (7x24) FAX: +1 925-423-8002 STU-III: +1 925-423-2604 E-mail: ciac@ciac.org Previous CIAC notices, anti-virus software, and other information are available from the CIAC Computer Security Archive. World Wide Web: http://www.ciac.org/ Anonymous FTP: ftp.ciac.org PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing communities receive CIAC bulletins. If you are not part of these communities, please contact your agency's response team to report incidents. Your agency's team will coordinate with CIAC. The Forum of Incident Response and Security Teams (FIRST) is a world-wide organization. A list of FIRST member organizations and their constituencies can be obtained via WWW at http://www.first.org/. This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. 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