The Bugzilla 4.5.3, 4.4.3, 4.2.8, and 4.0.12 releases fix two security issues. Quoting from <http://seclists.org/bugtraq/2014/Apr/112>:
Class: Cross-Site Request Forgery
Versions: Bugzilla 2.0 to 4.4.2, 4.5.1 to 4.5.2
Fixed In: 4.4.3, 4.5.3
Description: The login form had no CSRF protection, meaning that
an attacker could force the victim to log in using the
attacker's credentials. If the victim then reports a new
security sensitive bug, the attacker would get immediate
access to this bug.
Due to changes involved in the Bugzilla API, this fix is
not backported to the 4.0 and 4.2 branches, meaning that
Bugzilla 4.0.12 and older, and 4.2.8 and older, will
remain vulnerable to this issue.
CVE Number: CVE-2014-1517
Class: Social Engineering
Versions: Bugzilla 2.0 to 4.0.11, 4.1.1 to 4.2.7, 4.3.1 to 4.4.2,
4.5.1 to 4.5.2
Fixed In: 4.0.12, 4.2.8, 4.4.3, 4.5.3
Description: Dangerous control characters can be inserted into
Bugzilla, notably into bug comments. If the text, which
may look safe, is copied into a terminal such as xterm or
gnome-terminal, then unexpected commands could be executed
on the local machine.
CVE Number: none
Created bugzilla tracking bugs for this issue:
Affects: fedora-all [bug 1089897]
Affects: epel-all [bug 1089898]
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.