diff --git a/ext/openssl/openssl.c b/ext/openssl/openssl.c
index 1ec9ec85729..bc00b6b189b 100644
--- a/ext/openssl/openssl.c
+++ b/ext/openssl/openssl.c
@@ -2712,16 +2712,21 @@ PHP_FUNCTION(openssl_pkcs7_encrypt)
 	/* tack on extra headers */
 	if (zheaders) {
 		ZEND_HASH_FOREACH_STR_KEY_VAL(Z_ARRVAL_P(zheaders), strindex, zcertval) {
+			int ret;
 			zend_string *str = zval_try_get_string(zcertval);
 			if (UNEXPECTED(!str)) {
 				goto clean_exit;
 			}
 			if (strindex) {
-				BIO_printf(outfile, "%s: %s\n", ZSTR_VAL(strindex), ZSTR_VAL(str));
+				ret = BIO_printf(outfile, "%s: %s\n", ZSTR_VAL(strindex), ZSTR_VAL(str));
 			} else {
-				BIO_printf(outfile, "%s\n", ZSTR_VAL(str));
+				ret = BIO_printf(outfile, "%s\n", ZSTR_VAL(str));
 			}
 			zend_string_release(str);
+			if (ret < 0) {
+				php_openssl_store_errors();
+				goto clean_exit;
+			}
 		} ZEND_HASH_FOREACH_END();
 	}
 
@@ -2941,6 +2946,7 @@ PHP_FUNCTION(openssl_pkcs7_sign)
 			zend_string_release(str);
 			if (ret < 0) {
 				php_openssl_store_errors();
+				goto clean_exit;
 			}
 		} ZEND_HASH_FOREACH_END();
 	}
@@ -3341,16 +3347,21 @@ PHP_FUNCTION(openssl_cms_encrypt)
 	/* tack on extra headers */
 	if (zheaders && encoding == ENCODING_SMIME) {
 		ZEND_HASH_FOREACH_STR_KEY_VAL(Z_ARRVAL_P(zheaders), strindex, zcertval) {
+			int ret;
 			zend_string *str = zval_try_get_string(zcertval);
 			if (UNEXPECTED(!str)) {
 				goto clean_exit;
 			}
 			if (strindex) {
-				BIO_printf(outfile, "%s: %s\n", ZSTR_VAL(strindex), ZSTR_VAL(str));
+				ret = BIO_printf(outfile, "%s: %s\n", ZSTR_VAL(strindex), ZSTR_VAL(str));
 			} else {
-				BIO_printf(outfile, "%s\n", ZSTR_VAL(str));
+				ret = BIO_printf(outfile, "%s\n", ZSTR_VAL(str));
 			}
 			zend_string_release(str);
+			if (ret < 0) {
+				php_openssl_store_errors();
+				goto clean_exit;
+			}
 		} ZEND_HASH_FOREACH_END();
 	}
 
@@ -3631,6 +3642,7 @@ PHP_FUNCTION(openssl_cms_sign)
 			zend_string_release(str);
 			if (ret < 0) {
 				php_openssl_store_errors();
+				goto clean_exit;
 			}
 		} ZEND_HASH_FOREACH_END();
 	}