oss-security - CVE Request: Python 2.7

Follow @Openwall on Twitter for new release announcements and other news

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20140923191627.GA27818@zoho.com>
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]
-------------------


Content of type "application/pgp-signature" skipped

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.