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:

• Confidential product and component names can be disclosed to
  unauthorized users if they are used to control the visibility of
  a custom field.

• When calling the 'User.get' WebService method with a 'groups'
  argument, it is possible to check if the given group names exist
  or not.

• Due to incorrectly filtered field values in tabular reports, it is
  possible to inject code which can lead to XSS.

• When trying to mark an attachment in a bug you cannot see as
  obsolete, the description of the attachment is disclosed in the
  error message.

• A vulnerability in swfstore.swf from YUI2 can lead to XSS.

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

Vulnerability Details

Class: Information Leak
Versions: 3.3.4 to 3.6.11, 3.7.1 to 4.0.8, 4.1.1 to 4.2.3,
4.3.1 to 4.3.3
Fixed In: 3.6.12, 4.0.9, 4.2.4, 4.4rc1
Description: If the visibility of a custom field is controlled by
a product or a component of a product you cannot see,
their names are disclosed in the JavaScript code
generated for this custom field despite they should
remain confidential.
References: https://bugzilla.mozilla.org/show_bug.cgi?id=731178
CVE Number: CVE-2012-4199

Class: Information Leak
Versions: 3.7.1 to 4.0.8, 4.1.1 to 4.2.3, 4.3.1 to 4.3.3
Fixed In: 4.0.9, 4.2.4, 4.4rc1
Description: Calling the User.get method with a 'groups' argument leaks
the existence of the groups depending on whether an error
is thrown or not. This method now also throws an error if
the user calling this method does not belong to these
groups (independently of whether the groups exist or not).
References: https://bugzilla.mozilla.org/show_bug.cgi?id=781850
CVE Number: CVE-2012-4198

Class: Cross-Site Scripting
Versions: 4.1.1 to 4.2.3, 4.3.1 to 4.3.3
Fixed In: 4.2.4, 4.4rc1
Description: Due to incorrectly filtered field values in tabular
reports, it is possible to inject code leading to XSS.
References: https://bugzilla.mozilla.org/show_bug.cgi?id=790296
CVE Number: CVE-2012-4189

Class: Information Leak
Versions: 2.16 to 3.6.11, 3.7.1 to 4.0.8, 4.1.1 to 4.2.3,
4.3.1 to 4.3.3
Fixed In: 3.6.12, 4.0.9, 4.2.4, 4.4rc1
Description: Trying to mark an attachment in a bug you cannot see as
obsolete discloses its description in the error message.
The description of the attachment is now removed from
the error message.
References: https://bugzilla.mozilla.org/show_bug.cgi?id=802204
CVE Number: CVE-2012-4197

Class: Cross-Site Scripting
Versions: 3.7.1 to 4.0.8, 4.1.1 to 4.2.3, 4.3.1 to 4.3.3
Fixed In: 4.0.9, 4.2.4, 4.4rc1
Description: A vulnerability in swfstore.swf from YUI2 allows
JavaScript injection exploits to be created against
domains that host this affected YUI .swf file.
References: https://bugzilla.mozilla.org/show_bug.cgi?id=808845
http://yuilibrary.com/support/20121030-vulnerability/
CVE Number: CVE-2012-5475

Vulnerability Solutions

The fixes for these issues are included in the 3.6.12, 4.0.9, 4.2.4
and 4.4rc1 releases. Upgrading to a release with the relevant fixes
will protect your installation from possible exploits of these issues.

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

Full release downloads, patches to upgrade Bugzilla from previous
versions, and CVS/bzr 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
this issue:

Frйdйric Buclin
David Lawrence
Gervase Markham
Mateusz Goik

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.