Commit 3d85c7f4 authored by Matt Caswell's avatar Matt Caswell
Browse files

Don't attempt to add a zero length padding extension 



The padding extension should always be at least 1 byte long

Reviewed-by: default avatarPaul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/4331)
parent 45fd6a59

ssl/statem/extensions_clnt.c

+1 −1
Original line number Diff line number Diff line
@@ -843,7 +843,7 @@ EXT_RETURN tls_construct_ctos_padding(SSL *s, WPACKET *pkt, 
         * 1 byte long so as not to have an empty extension last (WebSphere 7.x,

         * 8.x are intolerant of that condition)

         */

        if (hlen >= 4)

        if (hlen > 4)

            hlen -= 4;

        else

            hlen = 1;