The mod_headers module in the Apache HTTP Server 2.2.22 allows remote
attackers to bypass "RequestHeader unset" directives by placing a
header in the trailer portion of data sent with chunked transfer
coding. NOTE: the vendor states "this is not a security issue in httpd
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[dev] 20140401 CVE-2013-5704, mod_headers and chunked trailer fields
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