The JavaScript Engine in the Mozilla 1.7 application (see mozilla(1)) contains multiple memory corruption vulnerabilities  (see below for details)

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 15 separate memory corruption issues:

• http://www.mozilla.org/security/announce/2006/mfsa2006-65.html

This Sun Alert corresponds to the 10 JavaScript engine issues described in the Mozilla advisory under CVE-2006-5748.

Note that of these 10 vulnerabilities, Mozilla 1.7 is only affected by the following six issues:

• https://bugzilla.mozilla.org/show_bug.cgi?id=349527
• https://bugzilla.mozilla.org/show_bug.cgi?id=351973
• https://bugzilla.mozilla.org/show_bug.cgi?id=350238
• https://bugzilla.mozilla.org/show_bug.cgi?id=351116
• https://bugzilla.mozilla.org/show_bug.cgi?id=352606
• https://bugzilla.mozilla.org/show_bug.cgi?id=354924

Additional references:

• CVE-2006-5748 at: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5748
• CERT VU#390480 at: http://www.kb.cert.org/vuls/id/390480
• CERT Technical Cyber Security Alert TA06-312A at: http://www.us-cert.gov/cas/techalerts/TA06-312A.html

These issues can occur in the following releases:

SPARC Platform

• Mozilla 1.7 (for Solaris 8 and 9) without patch 120671-08
• Mozilla 1.7 (for Solaris 10) without patch 119115-34

x86 Platform

• Mozilla 1.7 (for Solaris 8 and 9) without patch 120672-08
• Mozilla 1.7 (for Solaris 10) without patch 119116-34

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.

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

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

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

These issues are addressed in the following releases:

SPARC Platform

• Mozilla 1.7 (for Solaris 8 and 9) with patch 120671-08 or later
  
• Mozilla 1.7 (for Solaris 10) with patch 119115-34 or later
  

x86 Platform

• Mozilla 1.7 (for Solaris 8 and 9) with patch 120672-08 or later
  
• Mozilla 1.7 (for Solaris 10) with patch 119116-34 or later
  

19-Jun-2008: Updated Contributing Factors and Resolution sections. Resolved
23-Jun-2008: Reopened.  Final resolution is pending completion.
03-Sep-2008: Updated Contributing Factors and Resolution sections. Now Resolved.

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