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Summary

=======



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

software projects.



Bugzilla 3.2.1, 3.0.7, and 3.3.2, when running under mod_perl,

generated insufficiently random numbers, resulting in all random

tokens being the same, all CSRF protection being defeated, and the

new attachment_base functionality being compromised. Only these

releases were affected--earlier releases are not affected.



All affected installations are encouraged to upgrade as soon as 

possible.



Vulnerability Details

=====================



Class:       Insufficiently Random Numbers

Versions:    3.2.1, 3.0.7, and 3.3.2

Fixed In:    3.2.2, 3.0.8, 3.3.3

Description: Bugzilla was calling srand() at compile time. Under

             mod_perl, this led to all Apache children having the same

             random seed, meaning that they all generated identical

             "random" strings instead of actually random strings.



             This means that all tokens were highly predictable, all

             CSRF protection was easily circumvented, and any

             installation using the new attachment_base functionality

             could possibly have any private attachment viewed without

             the user even logging in.



             Versions before 3.2.1, 3.0.7, and 3.3.2 were not

             affected. Installations that are not using mod_perl

             for Bugzilla are not affected.



References:  https://bugzilla.mozilla.org/show_bug.cgi?id=476594



Vulnerability Solutions

=======================



The fix for this issue in is included in the 3.3.3, 3.2.2, and 3.0.8

releases. Upgrading to a release with the relevant fix 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:



Philippe M. Chiasson

Dave Miller

Max Kanat-Alexander



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.



- --

Max Kanat-Alexander

Release Manager, Bugzilla Project

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