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Message-ID: <20090805220515.03fb8c0b@redhat.com>
Date: Wed, 5 Aug 2009 22:05:15 +0200
From: Tomas Hoger <thoger@...hat.com>
To: matthias.andree@....de
Cc: oss-security@...ts.openwall.com,
"Steven M. Christey"
<coley@...us.mitre.org>
Subject: Re: CVE request: fetchmail <= 6.3.10 SSL certificate
NUL prefix verification bypass
Hi Matthias!
On Wed, 05 Aug 2009 18:55:39 +0200 "Matthias Andree"
<matthias.andree@....de> wrote:
> FWIW, I haven't yet tested if this works for NUL in subjectAltNames,
> as I currently don't know how to generate such a certificate (can be
> self-signed) without writing major amounts of code.
>
> If someone has a certificate that has embedded NULs in
> subjectAltNames that I can use for testing, please send it along
> together with its key so that I can check the fix also works in that
> code path.
I managed to build these, that may be helpful during the testing:
http://people.redhat.com/thoger/certs-with-nuls/
Let me know if anything needed is missing there.
HTH
--
Tomas Hoger / Red Hat Security Response Team
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