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bug#31946: 27.0.50; The NSM should warn about more TLS problems


From: Lars Ingebrigtsen
Subject: bug#31946: 27.0.50; The NSM should warn about more TLS problems
Date: Sun, 08 Jul 2018 22:01:00 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux)

Noam Postavsky <address@hidden> writes:

> Yeah, the _dn3 data still misses the CN=... from the issuer and is not
> equal the the subject for the root, so it doesn't seem to help this
> problem.

I tried using gnutls-cli, and it saus:

- Certificate[2] info:
 - subject `CN=VeriSign Class 3 Public Primary Certification Authority - 
G5,OU=(c) 2006 VeriSign\, Inc. - For authorized use only,OU=VeriSign Trust 
Network,O=VeriSign\, Inc.,C=US', issuer `OU=Class 3 Public Primary 
Certification Authority,O=VeriSign\, Inc.,C=US', serial 
0x250ce8e030612e9f2b89f7054d7cf8fd, RSA key 2048 bits, signed using RSA-SHA1, 
activated `2006-11-08 00:00:00 UTC', expires `2021-11-07 23:59:59 UTC', key-ID 
`sha256:25b41b506e4930952823a6eb9f1d31def645ea38a5c6c6a96d71957e384df058'

So, no CN= in the issuer there, either...

And here's openssl s_client:

 2 s:/C=US/O=VeriSign, Inc./OU=VeriSign Trust Network/OU=(c) 2006 VeriSign, 
Inc. - For authorized use only/CN=VeriSign Class 3 Public Primary Certification 
Authority - G5
   i:/C=US/O=VeriSign, Inc./OU=Class 3 Public Primary Certification Authority

So there just isn't any CN= in the issuer here?

So we need a new way to determine whether a certificate is an
intermediate certificate.  Unless that really is an intermediate
certificate and the warning is correct.  :-)

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no





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