Updated freeradius packages that fix a memory leak flaw are now available
for Red Hat Enterprise Linux 3, 4, and 5.
This update has been rated as having moderate security impact by the Red
Hat Security Response Team.
FreeRADIUS is a high-performance and highly configurable free RADIUS server
designed to allow centralized authentication and authorization for a network.
A memory leak flaw was found in the way FreeRADIUS parses certain
authentication requests. A remote attacker could send a specially crafted
authentication request which could cause FreeRADIUS to leak a small amount
of memory. If enough of these requests are sent, the FreeRADIUS daemon
would consume a vast quantity of system memory leading to a possible denial
of service. (CVE-2007-2028)
Users of FreeRADIUS should update to these erratum packages, which contain a
backported patch to correct this issue.