- Fix for bug #13052

diff --git a/ext/mcrypt/mcrypt.c b/ext/mcrypt/mcrypt.c
index 600e9ae379555accab054828bf3fb16b76647959..4f1954a64155208c3a6b7123cb016540c717a878 100644 (file)
--- a/ext/mcrypt/mcrypt.c
+++ b/ext/mcrypt/mcrypt.c
@@ -456,6 +456,11 @@ PHP_FUNCTION(mcrypt_generic_init)
        max_key_size = mcrypt_enc_get_key_size (td);
        iv_size = mcrypt_enc_get_iv_size (td);
 
+       if (Z_STRLEN_PP(key) == 0) {
+               php_error (E_WARNING, "key size is 0");
+               RETURN_FALSE;
+       }
+
        key_s = emalloc (Z_STRLEN_PP(key));
        memset (key_s, 0, Z_STRLEN_PP(key));