Privilege escalation using a JavaScript function's cloned parent shutdown discovered it was possible to use the Object.watch() method to access an internal function object (the "clone parent") which could then be used to run arbitrary JavaScript code with full permission. This could be used to install malware such as password sniffers or viruses. In pre-release versions of Firefox 1.5 the same technique could be applied to the Array generic methods introduced in that release. Note: Thunderbird shares the JavaScript 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 fixed version. References [1]https://bugzilla.mozilla.org/show_bug.cgi?id=313370 [2]https://bugzilla.mozilla.org/show_bug.cgi?id=313684 This issue also affects FC4
Lifting embargo
Fedora Core 5 is no longer supported, could you please reproduce this with the updated version of the currently supported distribution (Fedora Core 6, or Fedora 7, or Rawhide)? If this issue turns out to still be reproducible, please let us know in this bug report. If after a month's time we have not heard back from you, we will have to close this bug as CANTFIX. Setting status to NEEDINFO, and awaiting information from the reporter. Thanks in advance.
We haven't got any reply to the last question about reproducability of the bug with Fedora Core 6, Fedora 7, or Fedora devel. Mass closing this bug, so if you have new information that would help us fix this bug, please reopen it with the additional information.