Fix bug #76705 (unusable ssl => peer_fingerprint in stream_context_create())

NEWS

@@ -25,6 +25,10 @@ PHP                                                                        NEWS
   . Fixed bug #76747 (Opcache treats path containing "test.pharma.tld" as a phar
     file). (Laruence)
 
+- OpenSSL:
+  . Fixed bug #76705 (unusable ssl => peer_fingerprint in 
+    stream_context_create()). (Jakub Zelenka)
+
 - phpdbg:
   . Fixed bug #76595 (phpdbg man page contains outdated information).
     (Kevin Abel)

ext/openssl/tests/bug76705.pem

@@ -0,0 +1,50 @@
+-----BEGIN CERTIFICATE-----
+MIIDjjCCAnagAwIBAgIJAJCtQJeo8gdyMA0GCSqGSIb3DQEBCwUAMFwxCzAJBgNV
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++ERVRVyaMmO286CONAhSO2cP9P/Ss7NSt28kXNGux1zSeXsRjMx8ICUqtaG99ZhD
+bdo=
+-----END CERTIFICATE-----
+-----BEGIN PRIVATE KEY-----
+MIIEvwIBADANBgkqhkiG9w0BAQEFAASCBKkwggSlAgEAAoIBAQC6pyU71xt6OO7j
+6WiSPq4wn8FgL1/JalDw9OY2AhHJGDgkGQ83tKgM8SUZ5XSUuFf7BFoKra6CZvgL
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+aDvX/slF+5i+zgN6JKaqqppzQA==
+-----END PRIVATE KEY-----

ext/openssl/tests/bug76705.phpt

@@ -0,0 +1,43 @@
+--TEST--
+Bug #76705: unusable ssl => peer_fingerprint in stream_context_create()
+--SKIPIF--
+<?php
+if (!extension_loaded("openssl")) die("skip openssl not loaded");
+if (!function_exists("proc_open")) die("skip no proc_open");
+?>
+--FILE--
+<?php
+$serverCode = <<<'CODE'
+    $serverUri = "ssl://127.0.0.1:64323";
+    $serverFlags = STREAM_SERVER_BIND | STREAM_SERVER_LISTEN;
+    $serverCtx = stream_context_create(['ssl' => [
+        'local_cert' => __DIR__ . '/bug76705.pem'
+    ]]);
+
+    $server = stream_socket_server($serverUri, $errno, $errstr, $serverFlags, $serverCtx);
+    phpt_notify();
+
+    @stream_socket_accept($server, 1);
+CODE;
+
+$clientCode = <<<'CODE'
+    $serverUri = "ssl://127.0.0.1:64323";
+    $clientFlags = STREAM_CLIENT_CONNECT;
+    $clientCtx = stream_context_create(['ssl' => [
+        'verify_peer'       => true,
+        'peer_name'         => 'openssl.php.net',
+        'allow_self_signed' => true,
+        'peer_fingerprint'  => [
+            'sha256' => '4A524F3617E41BCCA1370ED9E89C9A7A83C28F0F342C490296D362869BDF1DA8',
+        ]
+    ]]);
+
+    phpt_wait();
+    var_dump(stream_socket_client($serverUri, $errno, $errstr, 2, $clientFlags, $clientCtx));
+CODE;
+
+include 'ServerClientTestCase.inc';
+ServerClientTestCase::getInstance()->run($clientCode, $serverCode);
+?>
+--EXPECTF--
+resource(%d) of type (stream)

ext/openssl/xp_ssl.c

@@ -471,6 +471,7 @@ static zend_bool matches_common_name(X509 *peer, const char *subject_name) /* {{
 static int apply_peer_verification_policy(SSL *ssl, X509 *peer, php_stream *stream) /* {{{ */
 {
 	zval *val = NULL;
+	zval *peer_fingerprint;
 	char *peer_name = NULL;
 	int err,
 		must_verify_peer,
@@ -488,6 +489,7 @@ static int apply_peer_verification_policy(SSL *ssl, X509 *peer, php_stream *stre
 		: sslsock->is_client;
 
 	must_verify_fingerprint = GET_VER_OPT("peer_fingerprint");
+	peer_fingerprint = val;
 
 	if ((must_verify_peer || must_verify_peer_name || must_verify_fingerprint) && peer == NULL) {
 		php_error_docref(NULL, E_WARNING, "Could not get peer certificate");
@@ -519,8 +521,8 @@ static int apply_peer_verification_policy(SSL *ssl, X509 *peer, php_stream *stre
 
 	/* If a peer_fingerprint match is required this trumps peer and peer_name verification */
 	if (must_verify_fingerprint) {
-		if (Z_TYPE_P(val) == IS_STRING || Z_TYPE_P(val) == IS_ARRAY) {
+		if (Z_TYPE_P(peer_fingerprint) == IS_STRING || Z_TYPE_P(peer_fingerprint) == IS_ARRAY) {
-			if (!php_x509_fingerprint_match(peer, val)) {
+			if (!php_x509_fingerprint_match(peer, peer_fingerprint)) {
 				php_error_docref(NULL, E_WARNING,
 					"peer_fingerprint match failure"
 				);