diff -up openssl-fips-0.9.8e/ssl/ssl3.h.keying-mitm openssl-fips-0.9.8e/ssl/ssl3.h --- openssl-fips-0.9.8e/ssl/ssl3.h.keying-mitm 2014-06-02 15:49:35.036283939 +0200 +++ openssl-fips-0.9.8e/ssl/ssl3.h 2014-06-02 17:00:09.808186361 +0200 @@ -344,6 +344,7 @@ typedef struct ssl3_buffer_st * effected, but we can't prevent that. */ #define SSL3_FLAGS_SGC_RESTART_DONE 0x0040 +#define SSL3_FLAGS_CCS_OK 0x0080 typedef struct ssl3_state_st { diff -up openssl-fips-0.9.8e/ssl/s3_clnt.c.keying-mitm openssl-fips-0.9.8e/ssl/s3_clnt.c --- openssl-fips-0.9.8e/ssl/s3_clnt.c.keying-mitm 2014-06-02 15:45:18.346349601 +0200 +++ openssl-fips-0.9.8e/ssl/s3_clnt.c 2014-06-02 15:49:35.036283939 +0200 @@ -425,6 +425,7 @@ int ssl3_connect(SSL *s) case SSL3_ST_CR_FINISHED_A: case SSL3_ST_CR_FINISHED_B: + s->s3->flags |= SSL3_FLAGS_CCS_OK; ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A, SSL3_ST_CR_FINISHED_B); if (ret <= 0) goto end; @@ -706,6 +707,7 @@ int ssl3_get_server_hello(SSL *s) SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT); goto f_err; } + s->s3->flags |= SSL3_FLAGS_CCS_OK; s->hit=1; } else /* a miss or crap from the other end */ diff -up openssl-fips-0.9.8e/ssl/s3_pkt.c.keying-mitm openssl-fips-0.9.8e/ssl/s3_pkt.c --- openssl-fips-0.9.8e/ssl/s3_pkt.c.keying-mitm 2014-06-02 15:45:18.375350271 +0200 +++ openssl-fips-0.9.8e/ssl/s3_pkt.c 2014-06-02 15:49:35.037283962 +0200 @@ -1133,6 +1133,15 @@ start: goto f_err; } + if (!(s->s3->flags & SSL3_FLAGS_CCS_OK)) + { + al=SSL_AD_UNEXPECTED_MESSAGE; + SSLerr(SSL_F_SSL3_READ_BYTES,SSL_R_CCS_RECEIVED_EARLY); + goto f_err; + } + + s->s3->flags &= ~SSL3_FLAGS_CCS_OK; + rr->length=0; if (s->msg_callback) @@ -1264,7 +1273,7 @@ int ssl3_do_change_cipher_spec(SSL *s) if (s->s3->tmp.key_block == NULL) { - if (s->session == NULL) + if (s->session == NULL || s->session->master_key_length == 0) { /* might happen if dtls1_read_bytes() calls this */ SSLerr(SSL_F_SSL3_DO_CHANGE_CIPHER_SPEC,SSL_R_CCS_RECEIVED_EARLY); diff -up openssl-fips-0.9.8e/ssl/s3_srvr.c.keying-mitm openssl-fips-0.9.8e/ssl/s3_srvr.c --- openssl-fips-0.9.8e/ssl/s3_srvr.c.keying-mitm 2014-06-02 15:45:18.362349971 +0200 +++ openssl-fips-0.9.8e/ssl/s3_srvr.c 2014-06-02 15:49:35.037283962 +0200 @@ -492,6 +492,7 @@ int ssl3_accept(SSL *s) case SSL3_ST_SR_CERT_VRFY_A: case SSL3_ST_SR_CERT_VRFY_B: + s->s3->flags |= SSL3_FLAGS_CCS_OK; /* we should decide if we expected this one */ ret=ssl3_get_cert_verify(s); if (ret <= 0) goto end; @@ -502,6 +503,7 @@ int ssl3_accept(SSL *s) case SSL3_ST_SR_FINISHED_A: case SSL3_ST_SR_FINISHED_B: + s->s3->flags |= SSL3_FLAGS_CCS_OK; ret=ssl3_get_finished(s,SSL3_ST_SR_FINISHED_A, SSL3_ST_SR_FINISHED_B); if (ret <= 0) goto end;