Privilege escalation using crypto.generateCRMFRequest shutdown demonstrated that the crypto.generateCRMFRequest method can be used to run arbitrary code with the privilege of the user, which could enable an attacker to install malware. Note: 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 Disable JavaScript until you can upgrade to a version with the fix. References [1]https://bugzilla.mozilla.org/show_bug.cgi?id=327126 This issue also affects FC4
Lifting embargo
This bug was fixed for FC4 in Fedora Update FEDORA-2006-488 <http://www.redhat.com/archives/fedora-package-announce/2006-May/msg00019.html>. This bug was fixed for FC5 in Fedora Update FEDORA-2006-487 <http://www.redhat.com/archives/fedora-package-announce/2006-May/msg00018.html>.