AST-2014-001: Stack overflow in HTTP processing of Cookie headers.

AST-2014-001: Stack overflow in HTTP processing of Cookie headers.

Sending a HTTP request that is handled by Asterisk with a large number of
Cookie headers could overflow the stack.

Another vulnerability along similar lines is any HTTP request with a
ridiculous number of headers in the request could exhaust system memory.

(closes issue ASTERISK-23340)
Reported by: Lucas Molas, researcher at Programa STIC, Fundacion; and Dr. Manuel Sadosky, Buenos Aires, Argentina
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Merged revisions 410380 from http://svn.asterisk.org/svn/asterisk/branches/1.8

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/11@410381 65c4cc65-6c06-0410-ace0-fbb531ad65f3