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Date: Thu, 25 Sep 2014 16:28:01 -0400 (EDT)
From: cve-assign@...re.org
To: mancha1@...o.com
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com
Subject: Re: CVE Request: Python 2.7

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> http://bugs.python.org/issue21831
> https://hg.python.org/cpython/diff/8d963c7db507/Objects/bufferobject.c
> avoid overflow with large buffer sizes and/or offsets (closes #21831)

> import sys
> a = bytearray('CVE request')
> b = buffer(a, sys.maxsize, sys.maxsize)
> print b[:8192]

Our understanding is that this request is entirely about the integer
overflow. The request is, as far as we know, not about whether static
analysis could have detected that read access to "b" is attempted at a
time when the size of "a" is smaller than the offset argument used in
the "b =" line.

Use CVE-2014-7185.

- -- 
CVE assignment team, MITRE CVE Numbering Authority
M/S M300
202 Burlington Road, Bedford, MA 01730 USA
[ PGP key available through http://cve.mitre.org/cve/request_id.html ]
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