Fwd: TLS/SSH bugs
Frederik Kriewitz <[email protected]> Thu, 4 Dec 2014 11:20:46 +0100
| Newsgroups | gmane.comp.encryption.cryptlib |
|---|---|
| Message-ID | <CAKCUjRVG_YE1+G_4CsKQJmrBnuM6UaSAnV3N61T23Qi9QKPaSA@mail.gmail.com> |
Hello, we're not a direct cryptlib user but we have to deal with APC devices (which use cryptlib). We've a lot of trouble with the devices and we believe that most of them can be traced back to cryptlib. I'll start with a issue in the SSH server implementation where we already looked at the cryptlib code and are pretty sure that it''s not behaving correctly. SSH clients (e.g. OpenSSH >= v6.7) sending DH GEX requests with a key size of > 4096 bit won't be able to connect to the server. See http://forums.apc.com/message/65463#65463 for details. There seems to be a problem with TLS ClientHello extension handling (breaking compatibility with Chrome and Firefox without SSLv3 support): http://forums.apc.com/message/65421#65421 Besides that there's an issue with spaces in the common name (I assume that's a problem caused by the APC engineers) and certificates using UTF8String data types (That might be a general problem). See http://forums.apc.com/message/65428#65428 Besides that I'm wondering if the SSL/TLS server implementation supports sending multiple certificates during the handshake (to support intermediate CAs). I briefly looked at the SSL/TLS server Session part of the manual and it only talks about a single certificate. Best Regards, Freddy _______________________________________________ Cryptlib mailing list [email protected] via Mail: [email protected] Archive: ftp://ftp.franken.de/pub/crypt/cryptlib/archives/ http://news.gmane.org/gmane.comp.encryption.cryptlib Posts from non-subscribed addresses are blocked to prevent spam, please subscribe in order to post messages.