Fixed bug #60244 (pg_fetch_* functions do not validate that row param is >0).

2 files changed, 61 insertions, 0 deletions

diff --git a/ext/pgsql/pgsql.c b/ext/pgsql/pgsql.c
index a82271776c..8f979b7391 100644
--- a/ext/pgsql/pgsql.c
+++ b/ext/pgsql/pgsql.c
@@ -2452,6 +2452,10 @@ static void php_pgsql_fetch_hash(INTERNAL_FUNCTION_PARAMETERS, long result_type,
 	} else {
 		convert_to_long(zrow);
 		row = Z_LVAL_P(zrow);
+		if (row < 0) {
+			php_error_docref(NULL TSRMLS_CC, E_WARNING, "The row parameter must be greater or equal to zero");
+			RETURN_FALSE;
+		}
 	}
 	use_row = ZEND_NUM_ARGS() > 1 && row != -1;
 
diff --git a/ext/pgsql/tests/bug60244.phpt b/ext/pgsql/tests/bug60244.phpt
new file mode 100644
index 0000000000..94568b6031
--- /dev/null
+++ b/ext/pgsql/tests/bug60244.phpt
@@ -0,0 +1,57 @@
+--TEST--
+Bug #60244 (pg_fetch_* functions do not validate that row param is >0)
+--SKIPIF--
+<?php
+include("skipif.inc");
+?>
+--FILE--
+<?php
+
+include 'config.inc';
+
+$db = pg_connect($conn_str);
+$result = pg_query("select 'a' union select 'b'");
+
+var_dump(pg_fetch_array($result, -1));
+var_dump(pg_fetch_assoc($result, -1));
+var_dump(pg_fetch_object($result, -1));
+var_dump(pg_fetch_row($result, -1));
+
+var_dump(pg_fetch_array($result, 0));
+var_dump(pg_fetch_assoc($result, 0));
+var_dump(pg_fetch_object($result, 0));
+var_dump(pg_fetch_row($result, 0));
+
+pg_close($db);
+
+?>
+--EXPECTF--
+Warning: pg_fetch_array(): The row parameter must be greater or equal to zero in %sbug60244.php on line %d
+bool(false)
+
+Warning: pg_fetch_assoc(): The row parameter must be greater or equal to zero in %sbug60244.php on line %d
+bool(false)
+
+Warning: pg_fetch_object(): The row parameter must be greater or equal to zero in %sbug60244.php on line %d
+bool(false)
+
+Warning: pg_fetch_row(): The row parameter must be greater or equal to zero in %sbug60244.php on line %d
+bool(false)
+array(2) {
+  [0]=>
+  string(1) "a"
+  ["?column?"]=>
+  string(1) "a"
+}
+array(1) {
+  ["?column?"]=>
+  string(1) "a"
+}
+object(stdClass)#1 (1) {
+  ["?column?"]=>
+  string(1) "a"
+}
+array(1) {
+  [0]=>
+  string(1) "a"
+}