--------------------------------------------------------------------- Fedora Update Notification FEDORA-2005-962 2005-09-30 ---------------------------------------------------------------------

Product : Fedora Core 3 Name : thunderbird Version : 1.0.7 Release : 1.1.fc3 Summary : Mozilla Thunderbird mail/newsgroup client Description : Mozilla Thunderbird is a standalone mail and newsgroup client.

--------------------------------------------------------------------- Update Information:

An updated thunderbird package that fixes various bugs is now available for Fedora Core 3.

This update has been rated as having important security impact by the Fedora Security Response Team.

Mozilla Thunderbird is a standalone mail and newsgroup client.

A bug was found in the way Thunderbird processes certain international domain names. An attacker could create a specially crafted HTML file, which when viewed by the victim would cause Thunderbird to crash or possibly execute arbitrary code. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2005-2871 to this issue.

A bug was found in the way Thunderbird processes certain Unicode sequences. It may be possible to execute arbitrary code as the user running Thunderbird if the user views a specially crafted Unicode sequence. (CAN-2005-2702)

A bug was found in the way Thunderbird makes XMLHttp requests. It is possible that a malicious web page could leverage this flaw to exploit other proxy or server flaws from the victim's machine. It is also possible that this flaw could be leveraged to send XMLHttp requests to hosts other than the originator; the default behavior of the browser is to disallow this. (CAN-2005-2703)

A bug was found in the way Thunderbird implemented its XBL interface. It may be possible for a malicious web page to create an XBL binding in such a way that would allow arbitrary JavaScript execution with chrome permissions. Please note that in Thunderbird 1.0.6 this issue is not directly exploitable and will need to leverage other unknown exploits. (CAN-2005-2704)

An integer overflow bug was found in Thunderbird's JavaScript engine. Under favorable conditions, it may be possible for a malicious mail message to execute arbitrary code as the user running Thunderbird. Please note that JavaScript support is disabled by default in Thunderbird. (CAN-2005-2705)

A bug was found in the way Thunderbird displays about: pages. It is possible for a malicious web page to open an about: page, such as about:mozilla, in such a way that it becomes possible to execute JavaScript with chrome privileges. (CAN-2005-2706)

A bug was found in the way Thunderbird opens new windows. It is possible for a malicious web site to construct a new window without any user interface components, such as the address bar and the status bar. This window could then be used to mislead the user for malicious purposes. (CAN-2005-2707)

A bug was found in the way Thunderbird processes URLs passed to it on the command line. If a user passes a malformed URL to Thunderbird, such as clicking on a link in an instant messaging program, it is possible to execute arbitrary commands as the user running Thunderbird. (CAN-2005-2968)

Users of Thunderbird are advised to upgrade to this updated package that contains Thunderbird version 1.0.7 and is not vulnerable to these issues. --------------------------------------------------------------------- * Thu Sep 29 2005 Christopher Aillon caillon@redhat.com 1.0.7-1.1.fc3 - Update to 1.0.7, containing fixes for: CAN-2005-2701 CAN-2005-2702 CAN-2005-2703 CAN-2005-2704 CAN-2005-2705 CAN-2005-2706 CAN-2005-2707 CAN-2005-2968 CAN-2005-2871

--------------------------------------------------------------------- This update can be downloaded from: http://download.fedora.redhat.com/pub/fedora/linux/core/updates/3/

b7b046631b3da765dc140c9f63b3d363 SRPMS/thunderbird-1.0.7-1.1.fc3.src.rpm d6510371fcd2c52eeaa63c209a12aa30 x86_64/thunderbird-1.0.7-1.1.fc3.x86_64.rpm 6da817d9b8ec25dfd4831b68deb22e87 x86_64/debug/thunderbird-debuginfo-1.0.7-1.1.fc3.x86_64.rpm 9ee12c4b9138486be4a97152eaa8738c i386/thunderbird-1.0.7-1.1.fc3.i386.rpm 0c8e1c1fcb44b43d838d98dce901f824 i386/debug/thunderbird-debuginfo-1.0.7-1.1.fc3.i386.rpm

This update can also be installed with the Update Agent; you can launch the Update Agent with the 'up2date' command. ---------------------------------------------------------------------