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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:

• There is a way to inject both headers and content to users, causing
  a serious Cross-Site Scripting vulnerability.

• It was possible to see graphs from Old Charts even if you did not
  have access to a particular product, and you could browse a
  particular URL to see all product names.

• YUI 2.8.1, which shipped with Bugzilla starting with 3.7.x,
  contained a security vulnerability. The version of YUI shipped
  with Bugzilla 4.0rc1 and above has been updated to 2.8.2.

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

Vulnerability Details

Class: HTTP Response Splitting
Versions: Every Version Before 3.2.9, 3.4.9, 3.6.3, 4.0rc1
Fixed In: 3.2.9, 3.4.9, 3.6.3, 4.0rc1
Description: By inserting a certain string into a URL, it was possible
to inject both headers and content to any browser that
supported "Server Push" (mostly only Gecko-based browsers
like Firefox). This could lead to Cross-Site Scripting
vulnerabilities, and possibly other more dangerous
security issues as well.
References: https://bugzilla.mozilla.org/show_bug.cgi?id=600464
http://cwe.mitre.org/data/definitions/113.html
CVE Number: CVE-2010-3172

Class: Information Leak
Versions: 2.12 to 3.2.8, 3.4.8, 3.6.2, 3.7.3, 4.1
Fixed In: 3.2.9, 3.4.9, 3.6.3, 4.0rc1
Description: The Old Charts system generated graphs with
predictable names into the "graphs/" directory,
which also could be browsed to see its contents.
This allowed unauthorized users to see product names
and charted information about those products over time.
References: https://bugzilla.mozilla.org/show_bug.cgi?id=419014
CVE Number: CVE-2010-3764

Class: Cross-Site Scripting
Versions: 3.7.1 to 3.7.3, 4.1
Fixed In: 4.0rc1
Description: YUI 2.8.1 was vulnerable to a Cross-Site Scripting
vulnerability in certain .swf files. The YUI shipped
with Bugzilla has been updated to 2.8.2.
References: https://bugzilla.mozilla.org/show_bug.cgi?id=606618
http://secunia.com/advisories/41955
http://yuilibrary.com/support/2.8.2/

Vulnerability Solutions

The fixes for these issues are included in the 3.2.9, 3.4.9, 3.6.3, and
4.0rc1 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 bugzilla.mozilla.org "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:

Frederic Buclin
Byron Jones
Max Kanat-Alexander
Marc Schumann
Michael Coates
Philip Gillissen
Masahiro Yamada

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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