A vulnerability has been discovered in Mozilla Suite and Firefox, which can be exploited by malicious people to gain knowledge of potentially sensitive information.
The vulnerability is caused due to an error in the JavaScript engine, as a "lambda" replace exposes arbitrary amounts of heap memory after the end of a JavaScript string.
Successful exploitation may disclose sensitive information in memory.
Secunia has constructed a test, which can be used to check if your browser is affected by this issue:
http://secunia.com/mozilla_products_arbitrary_memory_exposure_test/
The vulnerability has been confirmed in versions 1.0.1 and 1.0.2. Other versions may also be affected.
SOFTWARE:
Mozilla 0.x
Mozilla 1.x
Mozilla 1.7.x
Mozilla Firefox 0.x
Mozilla Firefox 1.x
SOLUTION:
Disable JavaScript support.
PROVIDED AND/OR DISCOVERED BY:
Azafran
ORIGINAL ADVISORY:
Mozilla bug report:
https://bugzilla.mozilla.org/show_bug.cgi?id=288688
Azafran:
http://cubic.xfo.org.ru/index.cgi?read=53004
VERIFY ADVISORY:
http://secunia.com/advisories/14820/
Secunia Security Advisories
http://community.securityteam.us/article.php/20050406234054330