New submission from Марк Коренберг <socketp...@gmail.com>:

asynchat does not check if terminator is negative integer. so constructions 
like self.ac_in_buffer[:n] will lead to misbehaviour.

When that integer goes from net, attack can be crafted. For example, on 
Content-Length field.

----------
components: Library (Lib)
messages: 128914
nosy: mmarkk
priority: normal
severity: normal
status: open
title: asynchat
type: security

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue11259>
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