4.5.3, 4.4.3, 4.2.8, and 4.0.12

Thursday, Apr 17th, 2014

Summary
=======

Bugzilla is a Web-based bug-tracking system used by a large number of
software projects. The following security issues have been discovered
in Bugzilla:

* The login form had no CSRF protection, meaning that an attacker could
  force the victim to log in using the attacker's credentials.

* Dangerous control characters can be inserted into Bugzilla, notably
  into bug comments, which can then be used to execute local commands.

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


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

Class:       Cross-Site Request Forgery
Affected:    Bugzilla 2.0 to 4.4.2, 4.5.1 to 4.5.2
Fixed In:    4.4.3, 4.5.3
Description: The login form had no CSRF protection, meaning that
              an attacker could force the victim to log in using the
              attacker's credentials. If the victim then reports a new
              security sensitive bug, the attacker would get immediate
              access to this bug.
              Due to changes involved in the Bugzilla API, this fix is
              not backported to the 4.0 and 4.2 branches, meaning that
              Bugzilla 4.0.12 and older, and 4.2.8 and older, will
              remain vulnerable to this issue.
References:  https://bugzilla.mozilla.org/show_bug.cgi?id=713926
CVE Number:  CVE-2014-1517


Class:       Social Engineering
Affected:    Bugzilla 2.0 to 4.0.11, 4.1.1 to 4.2.7, 4.3.1 to 4.4.2, 4.5.1 to 4.5.2
Fixed In:    4.0.12, 4.2.8, 4.4.3, 4.5.3
Description: Dangerous control characters can be inserted into
             Bugzilla, notably into bug comments. If the text, which
             may look safe, is copied into a terminal such as xterm or
             gnome-terminal, then unexpected commands could be executed
             on the local machine.
References:  https://bugzilla.mozilla.org/show_bug.cgi?id=968576
CVE Number:  none


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

The fix for these issues is included in the 
releases. Upgrading to a release with the relevant fix will
protect your installation from possible exploits of these issues.

If you are unable to upgrade but would like to patch just the security
vulnerability, there are patches available for the issues at the
"References" URL.

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

  https://www.bugzilla.org/download/


Credits
=======

The Bugzilla team wish to thank the following people for their
assistance in locating, advising us of, and assisting us to fix this
issue:


Issue 1 Reporter: Reed Loden
Issue 1 Fixed by: Frédéric Buclin, Manish Goregaokar, David Lawrence, Byron Jones


Issue 2 Reporter: Manish Goregaokar
Issue 2 Fixed by: Frédéric Buclin, Manish Goregaokar, David Lawrence, Byron Jones

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

  https://www.bugzilla.org/

Comments and follow-ups can be directed to the support-bugzilla mailing list.
https://www.bugzilla.org/support/ has directions for accessing this forum.