Fedora Account System
Red Hat Associate
Red Hat Customer
Cross-site scripting using .valueOf.call() moz_bug_r_a4 discovered that .valueOf.call() and .valueOf.apply() when called with no arguments were returning the Object class prototype rather than the caller's global window object. When called on a reachable property of another window this provides a hook to get around the same-origin protection, allowing an attacker to inject script into another window. Cross-site script injection can be used to steal confidential data such as cookies or passwords, or perform actions on the user's behalf. It can also be used to alter the content of the other window which could be used to fool a user into trusting bogus information or downloaded content. 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 a fixed version can be installed. References [1]https://bugzilla.mozilla.org/show_bug.cgi?id=327194 [2]https://bugzilla.mozilla.org/show_bug.cgi?id=290488 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.