openssl/ssl, branch OpenSSL_1_0_2c

Allow a zero length extension block

2015-06-12T14:43:02Z

It is valid for an extension block to be present in a ClientHello, but to be of zero length. Reviewed-by: Richard Levitte Reviewed-by: Matt Caswell

More ssl_session_dup fixes

2015-06-11T09:04:00Z

Fix error handling in ssl_session_dup, as well as incorrect setting up of the session ticket. Follow on from CVE-2015-1791. Thanks to LibreSSL project for reporting these issues. Conflicts: ssl/ssl_sess.c Reviewed-by: Tim Hudson

Only allow a temporary rsa key exchange when they key is larger than 512.

2015-06-10T22:06:06Z

Reviewed-by: Rich Salz MR #838

Properly check certificate in case of export ciphers.

2015-06-10T22:06:06Z

Reviewed-by: Rich Salz MR #838

DTLS handshake message fragments musn't span packets

2015-06-10T11:10:18Z

It should not be possible for DTLS message fragments to span multiple packets. However previously if the message header fitted exactly into one packet, and the fragment body was in the next packet then this would work. Obviously this would fail if packets get re-ordered mid-flight. Reviewed-by: Tim Hudson

Tighten extension handling

2015-06-10T09:24:49Z

This adds additional checks to the processing of extensions in a ClientHello to ensure that either no extensions are present, or if they are then they take up the exact amount of space expected. With thanks to the Open Crypto Audit Project for reporting this issue. Reviewed-by: Stephen Henson Conflicts: ssl/t1_lib.c

Fix Kerberos issue in ssl_session_dup

2015-06-10T08:37:01Z

The fix for CVE-2015-1791 introduced an error in ssl_session_dup for Kerberos. Reviewed-by: Tim Hudson

Use CRYPTO_memcmp in s3_cbc.c

2015-06-08T13:04:28Z

Reviewed-by: Rich Salz

Allow all curves when the client doesn't send an supported elliptic curves extension

2015-06-04T19:12:33Z

At least in the case of SSLv3 we can't send an extention. Reviewed-by: Matt Caswell MR #811 (cherry picked from commit 3c06513f3833d4692f620e2c03d7a840871c08a7)

Remove misleading comment

2015-06-04T11:53:45Z

Remove a comment that suggested further clean up was required. DH_free() performs the necessary cleanup. With thanks to the Open Crypto Audit Project for reporting this issue. Reviewed-by: Rich Salz (cherry picked from commit f3d889523ee84f1e87e4da0d59e2702a4bee7907)