__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Mozilla Firefox Vulnerabilities [Mozilla Foundation Security Advisory 2008-33] July 8, 2008 18:00 GMT Number S-335 [REVISED 30 Jul 2008] [REVISED 18 Aug 2008] ______________________________________________________________________________ PROBLEM: There is a vulnerability in Firefox that could crash in Mozilla's block reflow code that could be used by an attacker to crash the browser and run arbitrary code on the victim's computer. PLATFORM: Firefox versions prior to 2.0.0.15 Debian GNU/Linux 4.0 (etch) DAMAGE: Execute arbitrary code and DoS. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. A remote, unauthenticated attacker may be ASSESSMENT: able to execute arbitrary code or cause a vulnerable browser to crash. ______________________________________________________________________________ CVSS 2 BASE SCORE: 7.5 TEMPORAL SCORE: 6.2 VECTOR: (AV:N/AC:L/Au:N/C:P/I:P/A:P/E:F/RL:OF/RC:C) ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/s-335.shtml ORIGINAL BULLETIN: http://www.mozilla.org/security/announce/2008/mfsa2008-33.html ADDITIONAL LINKS: http://www.kb.cert.org/vuls/id/607267 https://rhn.redhat.com/errata/RHSA-2008-0547.html https://rhn.redhat.com/errata/RHSA-2008-0569.html http://www.debian.org/security/2008/dsa-1607 http://www.debian.org/security/2008/dsa-1615 http://www.debian.org/security/2008/dsa-1621 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2008-2811 CVE-2008-2798 CVE-2008-2799 CVE-2008-2800 CVE-2008-2801 CVE-2008-2802 CVE-2008-2803 CVE-2008-2805 CVE-2008-2807 CVE-2008-2808 CVE-2008-2809 CVE-2008-2810 ______________________________________________________________________________ REVISION HISTORY: 07/30/2008 - revised S-335 to add a link to Debian Security Advisory DSA-1607-1 for Debian GNU/Linux 4.0 (etch). 08/18/2008 - revised S-335 to add a link to Debian Security Advisories DSA-1615-1 and DSA-1621-1 for Debian GNU/Linux 4.0 (etch). [***** Start Mozilla Foundation Security Advisory 2008-33 *****] Mozilla Foundation Security Advisory 2008-33 Title: Crash and remote code execution in block reflow Impact: Critical Announced: July 1, 2008 Reporter: Astabis (iSIGHT Partners GVP Program) Products: Firefox 2, Thunderbird 2, SeaMonkey Fixed in: Firefox 2.0.0.15 SeaMonkey 1.1.10 Description Security research firm Astabis reported a vulnerability in Firefox 2 submitted through the iSIGHT Partners GVP Program by Greg McManus, Primary GVP Researcher. The reported crash in Mozilla's block reflow code could be used by an attacker to crash the browser and run arbitrary code on the victim's computer. This vulnerability does not affect Firefox 3. 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. Workaround Disable JavaScript until a version containing these fixes can be installed. References https://bugzilla.mozilla.org/show_bug.cgi?id=439735 CVE-2008-2811 -------------------------------------------------------------------------------- [***** End Mozilla Foundation Security Advisory 2008-33 *****] _______________________________________________________________________________ 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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