diff --git a/ssl/d1_enc.c b/ssl/d1_enc.c
index 712c4647f..3da2b4c8c 100644
--- a/ssl/d1_enc.c
+++ b/ssl/d1_enc.c
@@ -241,7 +241,8 @@ int dtls1_enc(SSL *s, int send)
 				return 0;
 			}
 		
-		EVP_Cipher(ds,rec->data,rec->input,l);
+		if(EVP_Cipher(ds,rec->data,rec->input,l) < 1)
+			return -1;
 
 #ifdef KSSL_DEBUG
 		{
diff --git a/ssl/d1_pkt.c b/ssl/d1_pkt.c
index 3615423f6..800452827 100644
--- a/ssl/d1_pkt.c
+++ b/ssl/d1_pkt.c
@@ -1511,7 +1511,7 @@ int do_dtls1_write(SSL *s, int type, const unsigned char *buf, unsigned int len,
 		wr->length += bs;
 		}
 
-	s->method->ssl3_enc->enc(s,1);
+	if(s->method->ssl3_enc->enc(s,1) < 1) goto err;
 
 	/* record length after mac and block padding */
 /*	if (type == SSL3_RT_APPLICATION_DATA ||
diff --git a/ssl/s3_enc.c b/ssl/s3_enc.c
index 9a494f306..2ba52c45a 100644
--- a/ssl/s3_enc.c
+++ b/ssl/s3_enc.c
@@ -534,7 +534,8 @@ int ssl3_enc(SSL *s, int send)
 			/* otherwise, rec->length >= bs */
 			}
 		
-		EVP_Cipher(ds,rec->data,rec->input,l);
+		if(EVP_Cipher(ds,rec->data,rec->input,l) < 1)
+			return -1;
 
 		if (EVP_MD_CTX_md(s->read_hash) != NULL)
 			mac_size = EVP_MD_CTX_size(s->read_hash);
diff --git a/ssl/s3_pkt.c b/ssl/s3_pkt.c
index 504b468ec..92a65c38b 100644
--- a/ssl/s3_pkt.c
+++ b/ssl/s3_pkt.c
@@ -816,8 +816,7 @@ static int do_ssl3_write(SSL *s, int type, const unsigned char *buf,
 		wr->data=p;
 		}
 
-	/* ssl3_enc can only have an error on read */
-	s->method->ssl3_enc->enc(s,1);
+	if(s->method->ssl3_enc->enc(s,1)<1) goto err;
 
 	/* record length after mac and block padding */
 	s2n(wr->length,plen);