cups-browsed in cups-filters before 1.0.53 allows remote attackers to bypass intended access restrictions in opportunistic circumstances by leveraging a malformed cups-browsed.conf BrowseAllow directive that is interpreted as granting browse access to all IP addresses.
https://bugs.linuxfoundation.org/show_bug.cgi?id=1204
http://www.securityfocus.com/bid/68124
http://secunia.com/advisories/62044
http://rhn.redhat.com/errata/RHSA-2014-1795.html