diff -up openssl-fips-0.9.8e/ssl/s2_srvr.c.ssl2-ciphers openssl-fips-0.9.8e/ssl/s2_srvr.c --- openssl-fips-0.9.8e/ssl/s2_srvr.c.ssl2-ciphers 2015-04-02 15:33:51.109049368 +0200 +++ openssl-fips-0.9.8e/ssl/s2_srvr.c 2016-02-18 19:15:21.164380375 +0100 @@ -393,7 +393,7 @@ static int get_client_master_key(SSL *s) } cp=ssl2_get_cipher_by_char(p); - if (cp == NULL) + if (cp == NULL || sk_SSL_CIPHER_find(s->session->ciphers, cp) < 0) { ssl2_return_error(s,SSL2_PE_NO_CIPHER); SSLerr(SSL_F_GET_CLIENT_MASTER_KEY, SSL_R_NO_CIPHER_MATCH); @@ -692,9 +692,13 @@ static int get_client_hello(SSL *s) prio = cs; allow = cl; } + + /* Generate list of SSLv2 ciphers shared between client and server */ for (z=0; zalgorithms & SSL_SSLV2) == 0 || + sk_SSL_CIPHER_find(allow,cp) < 0) { (void)sk_SSL_CIPHER_delete(prio,z); z--; @@ -705,6 +709,14 @@ static int get_client_hello(SSL *s) sk_SSL_CIPHER_free(s->session->ciphers); s->session->ciphers = prio; } + + /* Make sure we have at least one cipher in common */ + if (sk_SSL_CIPHER_num(s->session->ciphers) == 0) + { + ssl2_return_error(s, SSL2_PE_NO_CIPHER); + SSLerr(SSL_F_GET_CLIENT_HELLO, SSL_R_NO_CIPHER_MATCH); + return -1; + } /* s->session->ciphers should now have a list of * ciphers that are on both the client and server. * This list is ordered by the order the client sent