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                                    CERT-Renater

                         Note d'Information No. 2007/VULN510
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DATE                      : 13/12/2007

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Solaris v8, v9 and v10 running Mozilla v1.7.

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Sun(sm) Alert Notification
      * Sun Alert ID: 103125
      * Synopsis: Multiple Security Vulnerabilities in JavaScript Engine
        in Mozilla 1.7 for Solaris 8, 9 and 10
      * Category: Security
      * Product: Mozilla v1.7, Solaris 9 Operating System, Solaris 10
        Operating System, Solaris 8 Operating System
      * BugIDs: 6564240
      * Avoidance: Workaround
      * State: Workaround
      * Date Released: 26-Oct-2007
      * Date Closed:
      * Date Modified: 10-Dec-2007

1. Impact

    The JavaScript Engine in the Mozilla 1.7 application (see mozilla(1))
    contains multiple memory corruption vulnerabilities which may allow a
    remote user who is able to create a web page which is visited by a
    local user using the Mozilla browser, or who sends a specially crafted
    email that is read by a local user using Mozilla, to either cause the
    Mozilla application to crash or execute arbitrary code with the
    privileges of the user running Mozilla. The ability of a remote user
    to cause the Mozilla application to crash is a type of Denial of
    Service (DoS).

    The following Mozilla advisory describes 30 separate issues. Of these
    issues, 20 affect the Layout engine and are listed under
    CVE-2007-2867, and 10 affect the JavaScript engine and are listed
    under CVE-2007-2868:
      * http://www.mozilla.org/security/announce/2007/mfsa2007-12.html

    This Sun Alert corresponds to the JavaScript issues described in the
    Mozilla advisory under CVE-2007-2868. Only 4 out of the 10 issues
    mentioned in this CVE are applicable to Mozilla 1.7 as below:
      * https://bugzilla.mozilla.org/show_bug.cgi?id=351102
      * https://bugzilla.mozilla.org/show_bug.cgi?id=375183
      * https://bugzilla.mozilla.org/show_bug.cgi?id=375711
      * https://bugzilla.mozilla.org/show_bug.cgi?id=367121

    Additional references:
      * CVE-2007-2868 at:
        http://nvd.nist.gov/nvd.cfm?cvename=CVE-2007-2868
      * CERT VU#609956 at: http://www.kb.cert.org/vuls/id/609956
      * CERT Technical Cyber Security Alert TA07-151A at:
        http://www.us-cert.gov/cas/techalerts/TA07-151A.html

2. Contributing Factors

    These issues can occur in the following releases:

    SPARC Platform
      * Mozilla 1.7 (for Solaris 8)
      * Mozilla 1.7 (for Solaris 9)
      * Mozilla 1.7 (for Solaris 10)

    x86 Platform
      * Mozilla 1.7 (for Solaris 8)
      * Mozilla 1.7 (for Solaris 9)
      * Mozilla 1.7 (for Solaris 10)

    Note: Mozilla 1.4 may be vulnerable to one or more of these security
    issues. Customers are advised to upgrade to Mozilla 1.7 to get the
    security fixes once they are available.

    To determine the version of Mozilla on a Solaris system, the following
    command can be run:
     % /usr/sfw/bin/mozilla -version
     Mozilla 1.7, (Sun Java Desktop System), build 2005031721


3. Symptoms

    There are no predictable symptoms that would indicate the described
    issues have been exploited.

4. Relief/Workaround

    To work around the issues described in this Sun Alert, disable
    JavaScript by doing the following:
     1. Open the "Preferences" dialog from the Edit menu
     2. Select the "Advanced" tree
     3. Select the "Scripts & Plug-ins" leaf
     4. Uncheck the "Navigator" and "Mail & Newsgroups" check boxes
     5. Click the "OK" button

5. Resolution

    A final resolution is pending completion.

Change History

    10-Dec-2007:
      * Updated the Impact section

    This Sun Alert notification is being provided to you on an "AS IS"
    basis. This Sun Alert notification may contain information provided by
    third parties. The issues described in this Sun Alert notification may
    or may not impact your system(s). Sun makes no representations,
    warranties, or guarantees as to the information contained herein. ANY
    AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
    WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
    NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT
    YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT,
    INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE
    OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN.
    This Sun Alert notification contains Sun proprietary and confidential
    information. It is being provided to you pursuant to the provisions of
    your agreement to purchase services from Sun, or, if you do not have
    such an agreement, the Sun.com Terms of Use. This Sun Alert
    notification may only be used for the purposes contemplated by these
    agreements.

    Copyright 2000-2006 Sun Microsystems, Inc., 4150 Network Circle, Santa
    Clara, CA 95054 U.S.A. All rights reserved

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