Security Vulnerabilities in Thunderbird for Solaris May Result in Privilege Escalation or Cross-Site Scripting (XSS)

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Security Vulnerabilities in Thunderbird for Solaris May Result in Privilege Escalation or Cross-Site Scripting (XSS)

1. Impact

Multiple security vulnerabilities in the thunderbird(1) application shipped with Solaris 10 may allow remote unprivileged users to execute arbitrary code with the privileges of the current user or cause Cross-site Scripting (XSS) risks on sites.

The following Mozilla advisories describe the vulnerabities:


Additional references:


2. Contributing Factors

These issues can occur in the following releases:

SPARC Platform

• Thunderbird 2.0 for Solaris 10 without patch 125541-03
• OpenSolaris based upon builds snv_89 or earlier
  

x86 Platform

• Thunderbird 2.0 for Solaris 10 without patch 125542-03
• OpenSolaris based upon builds snv_89 or earlier
  

Note: Solaris 8 and Solaris 9 do not ship Thunderbird and therefore are not affected by these issues.

OpenSolaris distributions may include additional bug fixes above and beyond the build from which it was derived. The base build can be derived as follows: 

$uname -a
SunOS hostname 5.11 snv_86 i86pc i386 i86pc

3. Symptoms

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

4. Workaround

To work around the issues described in MFSA 2008-01, MFSA 2008-03, MFSA 2008-13, MFSA 2008-14 and MFSA 2008-15, disable JavaScript by doing the following:

1. Open the 'Preferences' dialog from the Edit menu.
2. Select the 'Advanced' tab
3. Select the 'General' tab.
4. Click on the 'Config Editor' button.
5. In the 'about:config' dialog that opens up, there will be a 'Filter' box.
6. Type 'javascript.allow.mailnews' in the Filter box.
7. Double click the property and set its value to 'false'.

To work around the issue described in MFSA 2008-05, disable "flat-packaged" add-ons.

To work around the issue described in MFSA 2008-12, set the "mailnews.display.disallow_mime_handlers" property to any value greater than or equal to `3' by doing the following:

1. From the menu, go to Edit->Preferences->Advanced->Config Editor
2. Type the property name into the Filter box (mailnews.display.disallow_mime_handlers)
3. Right click and set its value to 3

5. Resolution

These issues are addressed in the following releases:

SPARC Platform

• Thunderbird 2.0 for Solaris 10 with patch 125541-03 or later
  
• OpenSolaris based upon builds snv_90 or later
  

x86 Platform

• Thunderbird 2.0 for Solaris 10 with patch 125542-03 or later
  
• OpenSolaris based upon builds snv_90 or later
  

For more information on Security Sun Alerts, see Technical Instruction ID 213557.

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 2000-2008 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved.

Modification History

31-Jul-2008: Updated Workaround section

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