[ANN] Security Advisory for Bugzilla versions prior to 3.2.3 and 3.3.4

[Max Kanat-Alexander]

Summary
=======

Bugzilla is a Web-based bug-tracking system, used by a large number of
software projects.

This advisory covers one security issue that has recently been
fixed in the Bugzilla code:

* Attachment editing was vulnerable to a cross-site request forgery.
  Note that this issue was only fixed for 3.2.3 and 3.3.4 even though
  all versions of Bugzilla are affected (see below for an explanation).

All affected installations are encouraged to upgrade as soon as
possible.

Vulnerability Details
=====================

Class:       Cross-Site Request Forgery
Versions:    Every version before 3.2.3 or 3.3.4
Fixed In:    3.2.3, 3.3.4
Description: Attachment editing was vulnerable to a cross-site request
             forgery, because it did not validate that calls to
             attachment.cgi actually came from Bugzilla.

             Bugzilla now generates a token that is validated when
             an attachment is edited. Unfortunately, a fix for this
             issue was only possible for 3.2.3 and 3.3.4. Fixing it on
             earlier branches was not possible as attachment timestamps
             are not available to generate and validate tokens.

Reference:   https://bugzilla.mozilla.org/show_bug.cgi?id=476603


Vulnerability Solutions
=======================

The fix for the security bug mentioned in this advisory is included
in the 3.3.4 and 3.2.3 releases. Upgrading to one of these releases
will protect your installation from possible exploits of this issue.

Full release downloads, patches to upgrade Bugzilla from previous
versions, and CVS upgrade instructions are available at:

  http://www.bugzilla.org/download/


Credits
=======

The Bugzilla team wish to thank the following people/organizations for
their assistance in locating, advising us of, and assisting us to fix
these issues:

Reed Loden
Frédéric Buclin
Dave Miller

General information about the Bugzilla bug-tracking system can be found
at:

  http://www.bugzilla.org/

Comments and follow-ups can be directed to the mozilla.support.bugzilla
newsgroup or the support-bugzilla mailing list.
http://www.bugzilla.org/support/ has directions for accessing these
forums.
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