Use-after-free vulnerability in the abstract file-descriptor handling interface in the cupsdDoSelect function in scheduler/select.c in the scheduler in cupsd in CUPS before 1.4.4, when kqueue or epoll is used, allows remote attackers to cause a denial of service (daemon crash or hang) via a client disconnection during listing of a large number of print jobs, related to improperly maintaining a reference count. NOTE: some of these details are obtained from third party information. NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-3553.
https://rhn.redhat.com/errata/RHSA-2010-0129.html
https://bugzilla.redhat.com/show_bug.cgi?id=557775
http://www.ubuntu.com/usn/USN-906-1
http://support.apple.com/kb/HT4188
http://security.gentoo.org/glsa/glsa-201207-10.xml
http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037174.html
http://lists.apple.com/archives/security-announce/2010//Jun/msg00001.html