| Package | Affected versions | Patched versions |
|---|---|---|
| bugzilla | = 2.19.1= 2.19.2= 2.19.3= 2.20= 2.21 |
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.
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