Red Hat is aware of this issue and is tracking it via the following bug:
This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 3, as it did not include support for ebtables. This issue was addressed in Red Hat Enterprise Linux 4 and 5 via https://rhn.redhat.com/errata/RHSA-2010-0146.html and https://rhn.redhat.com/errata/RHSA-2010-0147.html respectively. A futur e update in Red Hat Enterprise MRG may address this flaw.
CVSS v2 metrics
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Red Hat Security Errata
|Red Hat Enterprise Linux 4 (kernel)||RHSA-2010:0146||2010-03-17|
|MRG Grid for RHEL 5 Server (kernel-rt)||RHSA-2010:0161||2010-03-23|
|Red Hat Enterprise Linux 5 (kernel)||RHSA-2010:0147||2010-03-17|
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