- Fixed bug #34306 (wddx_serialize_value() crashes with long array keys)

diff --git a/ext/wddx/tests/bug34306.phpt b/ext/wddx/tests/bug34306.phpt
new file mode 100755 (executable)
index 0000000..2212dad
--- /dev/null
+++ b/ext/wddx/tests/bug34306.phpt
@@ -0,0 +1,12 @@
+--TEST--
+#34306 (wddx_serialize_value() crashes with long array keys)
+--FILE--
+<?php
+
+$var = array('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa12345678901234567890123456789012345678901234567890ba12345678901234567890123456789012345678901234567890ba12345678901234567890123456789012345678901234567890ba12345678901234567890123456789012345678901234567890b12345678901234567891234567890123123121231211111' => 1);
+$buf = wddx_serialize_value($var, 'name');
+echo "OK\n";
+
+?>
+--EXPECT--
+OK

diff --git a/ext/wddx/wddx.c b/ext/wddx/wddx.c
index d08cd6593a2d6e7c1aaa2fff7b177ac7e2bd23de..2d1fa6450953a127ef3dabc7ef949e79a207634a 100644 (file)
--- a/ext/wddx/wddx.c
+++ b/ext/wddx/wddx.c
@@ -423,7 +423,7 @@ static void php_wddx_serialize_number(wddx_packet *packet, zval *var)
        tmp = *var;
        zval_copy_ctor(&tmp);
        convert_to_string(&tmp);
-       sprintf(tmp_buf, WDDX_NUMBER, Z_STRVAL(tmp));
+       snprintf(tmp_buf, Z_STRLEN(tmp), WDDX_NUMBER, Z_STRVAL(tmp));
        zval_dtor(&tmp);
 
        php_wddx_add_chunk(packet, tmp_buf);    
@@ -618,15 +618,17 @@ static void php_wddx_serialize_array(wddx_packet *packet, zval *arr)
  */
 void php_wddx_serialize_var(wddx_packet *packet, zval *var, char *name, int name_len TSRMLS_DC)
 {
-       char tmp_buf[WDDX_BUF_LEN];
+       char *tmp_buf;
        char *name_esc;
        int name_esc_len;
        HashTable *ht;
 
        if (name) {
                name_esc = php_escape_html_entities(name, name_len, &name_esc_len, 0, ENT_QUOTES, NULL TSRMLS_CC);
-               sprintf(tmp_buf, WDDX_VAR_S, name_esc);
+               tmp_buf = emalloc(name_esc_len + 1);
+               snprintf(tmp_buf, name_esc_len, WDDX_VAR_S, name_esc);
                php_wddx_add_chunk(packet, tmp_buf);
+               efree(tmp_buf);
                efree(name_esc);
        }