Red Hat is aware of this issue and is tracking it via the following bug:
The Red Hat Security Response Team has rated this issue as having low security impact, a future update may address this flaw.
Red Hat Security Errata
|Red Hat Enterprise Linux 5 (xen)||RHSA-2008:0194||2008-05-13|
|Red Hat Enterprise Linux Virtualization 5 (xen)||RHSA-2008:0194||2008-05-13|