This bug is not for a security flaw. It is a tracking bug for regression introduced due to CVE-2011-0192 fix in libtiff
*** Bug 682883 has been marked as a duplicate of this bug. ***
This issue has been addressed in following products: Red Hat Enterprise Linux 4 Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 Via RHSA-2011:0392 https://rhn.redhat.com/errata/RHSA-2011-0392.html