Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date: Wed, 05 Nov 2008 12:10:54 +0100
From: Jan Lieskovsky <jlieskov@...hat.com>
To: "Steven M. Christey" <coley@...re.org>,
        Chris Evans <scarybeasts@...il.com>
Cc: oss-security@...ts.openwall.com
Subject: CVE Request - Python string expandtabs

Hello!

  yesterday looked yet at the Python issues reported
by Chris Evans at:

http://scary.beasts.org/security/CESA-2008-008.html

and found out, the issue:

* Integer overflow in string expandtabs operation

*  PoC: s = 't\tt\t'
        str.expandtabs(s, 2147483647)

  still lacks its own separate CVE identifier.

  Different issue than CVE-2008-2315.

  Reasoning:
  =========

  Integer overflows in stringobject.c and unicodeobject.c 
  in Python 2.5.2 are part of CVE-2008-2315, but
  part of CVE-2008-2315 is also mention about patch:
  
  http://bugs.gentoo.org/attachment.cgi?id=159418&action=view

  which by itself is not sufficient to resolve this flaw.

  Upstream has applied the following patch:
  ========================================= 

  http://svn.python.org/view?rev=61350&view=rev

  Have checked by above PoC that applying this patch
  solves this vulnerability.

  Affected Python versions: 2.2.3 <= x <= 2.5.1
  =========================

Chris, can you confirm my investigation?

Steve, could you allocate a new CVE id?

Thanks, Jan.

--
Jan iankko Lieskovsky / Red Hat Security Response Team  
  

Powered by blists - more mailing lists

Your e-mail address:

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.