Unknown vulnerability in filestat.c for Apache running on OS2, versions 2.0 through 2.0.45, allows unknown attackers to cause a denial of service via requests related to device names.
http://marc.info/?l=bugtraq&m=105418115512559&w=2
http://marc.info/?l=bugtraq&m=104931360606484&w=2
http://cvs.apache.org/viewcvs/apr/file_io/os2/filestat.c.diff?r1=1.34&r2=1.35