Description
Bugzilla 2.19.1 through 2.20rc2 and 2.21, with user matching turned on in substring mode, allows attackers to list all users whose names match an arbitrary substring, even when the usevisibilitygroups parameter is set.
References
- bugzilla-usevisibilitygroup-info-disclosure(42799) vdb-entry
- 17030 third-party-advisory
- 14996 vdb-entry
- http://www.bugzilla.org/security/2.18.4/
- 20051001 Security Advisory for Bugzilla 2.18.3, 2.20rc2, and 2.21 mailing-list