Security advisory for Bugzilla 5.1.1, 5.0.3, and 4.4.12

[Dave Lawrence]

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Summary
=======

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

* A CSRF vulnerability in report.cgi would allow a third-party site
  to extract confidential information from a bug the victim had access to.

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


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

Class:       Cross-Site Request Forgery
Versions:    Bugzilla 2.16rc1 to 4.4.12, 4.5.1 to 5.0.3
Fixed In:    4.4.13, 5.0.4
Description: Via the image generation in report.cgi, a malicious site
             using the presence of certain images, could extract
             potentially confidential information if the victim was
             logged in and could access the bug.
References:  https://bugzilla.mozilla.org/show_bug.cgi?id=1253263
CVE Number:  CVE-2018-5123


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

The fix for this issue is included in the 4.4.12 and 5.0.3
releases. Upgrading to a release with the relevant fix will
protect your installation from possible exploits of this issue.

If you are unable to upgrade but would like to patch just the security
vulnerability, there are patches available for the issue 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:

Reporter: Holger Fuhrmannek
Fixed by: Dylan Hardison

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 mozilla.support.bugzilla
newsgroup or the support-bugzilla mailing
list.https://www.bugzilla.org/support/ has directions for accessing
these
forums.

- --
David Lawrencedkl at mozilla.combugzilla.mozilla.org

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