For details, see upstream thread:
(also includes patch)
RHEL4 and previous are not vulnerable, no fix is needed for
them because they completely lack this feature and this code.
Although initially reported on email@example.com, the patch
and resulting discussion happened on firstname.lastname@example.org
so this bug is fully public knowledge.
Fedora kernels may be affected (any kernel since Jun 20th, 2005).
*** This bug has been marked as a duplicate of 237913 ***