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Subject:Security advisory for Bugzilla 5.0, 4.4.9, and 4.2.14


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:

* Login names longer than 127 characters can be corrupted, which could
 lead to the creation of a user account with an unexpected email

All affected installations are encouraged to upgrade as soon as

Vulnerability Details

Class:       Unauthorized Account Creation
Versions:    Bugzilla 2.0 to 4.2.14, 4.3.1 to 4.4.9, 4.5.1 to 5.0
Fixed In:    4.2.15, 4.4.10, 5.0.1
Description: Login names (usually an email address) longer than 127
            characters are silently truncated in MySQL which could
            cause the domain name of the email address to be
            corrupted. An attacker could use this vulnerability to
            create an account with an email address different from the
            one originally requested. The login name could then be
            automatically added to groups based on the group's regular
            expression setting.
CVE Number:  CVE-2015-4499

Vulnerability Solutions

The fix for this issue is included in the 4.2.15, 4.4.10 and 5.0.1
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:


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

Byron Jones
Frederic Buclin
Netanel Rubin

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

Comments and follow-ups can be directed to the
newsgroup or the support-bugzilla mailing list. has directions for accessing these

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