xref: /PHP-8.3/ext/gd/tests/bug66356.phpt (revision 0aaad46c)
1--TEST--
2Bug #66356 (Heap Overflow Vulnerability in imagecrop())
3--EXTENSIONS--
4gd
5--FILE--
6<?php
7$img = imagecreatetruecolor(10, 10);
8
9// POC #1
10var_dump(imagecrop($img, array("x" => "a", "y" => 0, "width" => 10, "height" => 10)));
11
12$arr = array("x" => "a", "y" => "12b", "width" => 10, "height" => 10);
13var_dump(imagecrop($img, $arr));
14print_r($arr);
15
16// POC #2
17var_dump(imagecrop($img, array("x" => 0, "y" => 0, "width" => -1, "height" => 10)));
18
19// POC #3
20var_dump(imagecrop($img, array("x" => -20, "y" => -20, "width" => 10, "height" => 10)));
21
22// POC #4
23var_dump(imagecrop($img, array("x" => 0x7fffff00, "y" => 0, "width" => 10, "height" => 10)));
24
25// bug 66815
26var_dump(imagecrop($img, array("x" => 0, "y" => 0, "width" => 65535, "height" => 65535)));
27?>
28--EXPECTF--
29object(GdImage)#2 (0) {
30}
31object(GdImage)#2 (0) {
32}
33Array
34(
35    [x] => a
36    [y] => 12b
37    [width] => 10
38    [height] => 10
39)
40
41Warning: imagecrop(): %cne parameter to a memory allocation multiplication is negative or zero, failing operation gracefully
42 in %s on line %d
43bool(false)
44object(GdImage)#2 (0) {
45}
46object(GdImage)#2 (0) {
47}
48
49Warning: imagecrop(): %croduct of memory allocation multiplication would exceed INT_MAX, failing operation gracefully
50 in %s on line %d
51bool(false)
52