The sudo feature in Bugzilla 2.22rc1 through 3.2.7, 3.3.1 through 3.4.7, 3.5.1 through 3.6.1, and 3.7 through 3.7.2 does not properly send impersonation notifications, which makes it easier for remote authenticated users to impersonate other users without discovery.
https://bugzilla.redhat.com/show_bug.cgi?id=623423
https://bugzilla.mozilla.org/show_bug.cgi?id=450013
http://www.vupen.com/english/advisories/2010/2205
http://www.vupen.com/english/advisories/2010/2035
http://www.securityfocus.com/bid/42275
http://www.bugzilla.org/security/3.2.7/
http://secunia.com/advisories/41128
http://secunia.com/advisories/40892
http://lists.fedoraproject.org/pipermail/package-announce/2010-August/046546.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-August/046534.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-August/046518.html