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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