Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date: Mon, 9 Dec 2013 18:41:26 -0500 (EST)
From: cve-assign@...re.org
To: ncoghlan@...hat.com
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com
Subject: Re: CPython hash secret can be recoved remotely

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

> This is a followup to CVE-2012-1150 (hash table collision CPU usage DOS
> in CPython)
> 
> http://bugs.python.org/issue14621 points out that the hash secret in
> CPython can be recovered remotely, so while the original fix addressed
> the "blind DOS" problem (of being able to DOS any Python based service
> with a single prepared payload), it didn't completely eliminate the
> potential for remote DOS attacks based on hash collisions.
> (http://bugs.python.org/issue14621#msg173455 has the details)
> 
> Python 3.4+ will use SipHash by default
> (http://www.python.org/dev/peps/pep-0456), which should resolve the
> vulnerability completely.

Use CVE-2013-7040.

- -- 
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 ]
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (SunOS)

iQEcBAEBAgAGBQJSplDSAAoJEKllVAevmvmsnusH+wZ4KrZq+VgroTsISAbCqcCH
2KVHnCwsVsbfpdFP8J4TLrRKfueFR53lqgGAi5TbMV9LbT7PYmp3PhVnepjG0h9c
1hbcBNnOcex6Nv/t0gEzOpoW7mMAJ5NkkrLa5zQdqpAox5Oa0G5WJWCgUIrCXhsd
xaAJtXC72rWH2iDqvZB8gxVnMAjhbcM+QB5RYHymBh647yTWEm/wY2tuSWGZmmM2
68cof3jY+L0f/UbhpVGKrRKFPVnfqD2TQTwJCYkC0bsAgYf/MVLi7Tw7K0ihi4x0
w5Epxc5dOiN/im1JJq/bnQZmt+JXbenQdKYhnyw1PlHQwG/yJj/8Pboqpu53SGY=
=F0rN
-----END PGP SIGNATURE-----

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.