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Date: Thu, 21 May 2015 15:29:23 +0200
From: Martin Prpic <mprpic@...hat.com>
To: "OSS Security Mailinglist" <oss-security@...ts.openwall.com>
Subject: CVE-2015-3206 python-kerberos: checkPassword() does not verify KDC authenticity
Hello!
Red Hat has assigned CVE-2015-3206 to the following issue:
https://www.calendarserver.org/ticket/833
"The python-kerberos checkPassword() does verify that it actually spoke
to a trusted KDC"
Upstream has not fixed it, rather documented the insecurity of the
checkPassword() function. We feel that this is not a proper solution
given the fact that the pykerberos fork of this library did fix this
issue by adding KDC validation:
https://github.com/02strich/pykerberos/commit/02d13860b25fab58e739f0e000bed0067b7c6f9c
Red Hat bug:
https://bugzilla.redhat.com/show_bug.cgi?id=1223802
--
Martin Prpič / Red Hat Product Security
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