Mozilla Foundation Security Advisory 2006-20

Crashes with evidence of memory corruption (rv:1.8.0.2)

Announced

April 13, 2006

Reporter

various

Impact

Critical

Products

Firefox, SeaMonkey, Thunderbird

Fixed in

• Firefox 1.5.0.2
• SeaMonkey 1.0.1
• Thunderbird 1.5.0.2

Description

As part of the Firefox 1.5.0.2 release we fixed several crash bugs to improve the stability of the product, with a particular focus on finding crashes caused by DHTML. Some of these crashes showed evidence of memory corruption that we presume could be exploited to run arbitrary code with enough effort.

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

Upgrade to the fixed versions. Do not enable JavaScript in Thunderbird or the mail portion of SeaMonkey.

References

Also fixed in Firefox/Thunderbird 1.0.8, Mozilla Suite 1.7.13:

• https://bugzilla.mozilla.org/show_bug.cgi?id=282105
  CVE-2006-1724
• https://bugzilla.mozilla.org/show_bug.cgi?id=320459

Fixed in Firefox 1.5.0.2, not applicable to older releases:

• https://bugzilla.mozilla.org/show_bug.cgi?id=315254
  CVE-2006-1529
• https://bugzilla.mozilla.org/show_bug.cgi?id=326615
  CVE-2006-1530
• https://bugzilla.mozilla.org/show_bug.cgi?id=326834
  CVE-2006-1531
• https://bugzilla.mozilla.org/show_bug.cgi?id=327941
  CVE-2006-1723
• https://bugzilla.mozilla.org/show_bug.cgi?id=328509