php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login

go to bug id or search bugs for

Bug #75778 Corrupt PNG image causes non-recoverable fatal PHP error
Submitted: 2018-01-08 12:00 UTC Modified: 2018-01-08 13:47 UTC
From: info at e-abi dot ee Assigned: cmb (profile)
Status: Not a bug Package: GD related
PHP Version: 5.6.33 OS: Debian GNU/Linux 9 (stretch)
Private report: No CVE-ID: None
View Developer Edit
Welcome back! If you're the original bug submitter, here's where you can edit the bug or add additional notes.
If you forgot your password, you can retrieve your password here.
Password:
Status:
Package:
Bug Type:
Summary:
From: info at e-abi dot ee
New email:
PHP Version: OS:

 

 [2018-01-08 12:00 UTC] info at e-abi dot ee 
Description:
------------
Corrupt PNG image causes non-recoverable fatal PHP error.
PHP Fatal error:  imagecreatefrompng(): gd-png: fatal libpng error: Read Error

Also affected:
PHP 7.0.26
PHP 7.1.13
PHP 7.2.1


Test script:
---------------
<?php
ini_set('display_errors', 1);
#actual image location: http://www.knoraki.se/media/ACME_191101_440x440_1.png

echo print_r(gd_info(), true);

$image = false;
$filename = 'ACME_191101_440x440_1.png';
$image = imagecreatefrompng($filename);
//$image = getimagesize($filename);
if (!$image) {
	$image = 'failed';
}
echo print_r($image, true);


Expected result:
----------------
Array
(
    [GD Version] => bundled (2.1.0 compatible)
    [FreeType Support] => 1
    [FreeType Linkage] => with freetype
    [T1Lib Support] =>
    [GIF Read Support] => 1
    [GIF Create Support] => 1
    [JPEG Support] => 1
    [PNG Support] => 1
    [WBMP Support] => 1
    [XPM Support] => 1
    [XBM Support] => 1
    [WebP Support] => 1
    [JIS-mapped Japanese Font Support] =>
)

Warning: imagecreatefrompng(): gd-png:  fatal libpng error: Read Error: truncate
d data in D:\Bill-Data\tmp\php-gd-bug\image-test.php on line 8

Warning: imagecreatefrompng(): gd-png error: setjmp returns error condition in D
:\Bill-Data\tmp\php-gd-bug\image-test.php on line 8

Warning: imagecreatefrompng(): 'ACME_191101_440x440_1.png' is not a valid PNG fi
le in D:\Bill-Data\tmp\php-gd-bug\image-test.php on line 8
failed


Actual result:
--------------
root@vmi137424:/var/www/magento.eabi.ee/php-gd-bug# php7.1 image-test.php
Array
(
    [GD Version] => 2.2.4
    [FreeType Support] => 1
    [FreeType Linkage] => with freetype
    [GIF Read Support] => 1
    [GIF Create Support] => 1
    [JPEG Support] => 1
    [PNG Support] => 1
    [WBMP Support] => 1
    [XPM Support] => 1
    [XBM Support] => 1
    [WebP Support] => 1
    [JIS-mapped Japanese Font Support] =>
)
PHP Fatal error:  imagecreatefrompng(): gd-png: fatal libpng error: Read Error: truncated data
 in /var/www/magento.eabi.ee/php-gd-bug/image-test.php on line 8

Fatal error: imagecreatefrompng(): gd-png: fatal libpng error: Read Error: truncated data
 in /var/www/magento.eabi.ee/php-gd-bug/image-test.php on line 8

#notice how the final "failed" statement is not displayed because the script is halted.

Patches

Pull Requests

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2018-01-08 13:47 UTC] cmb@php.net
-Status: Open +Status: Not a bug -Assigned To: +Assigned To: cmb
 [2018-01-08 13:47 UTC] cmb@php.net 
> [GD Version] => 2.2.4

Actually, this is not a PHP bug, but a problem of GD which has
been fixed as of GD 2.2.5, see
<https://github.com/libgd/libgd/issues/338>.
 
PHP Copyright © 2001-2025 The PHP Group
All rights reserved. 		Last updated: Mon Mar 17 20:01:27 2025 UTC