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Bug #81235 Imagick::newPseudoImage gives open_basedir restriction error
Submitted: 2021-07-08 13:10 UTC Modified: 2021-10-01 10:16 UTC
Votes:5
Avg. Score:4.8 ± 0.4
Reproduced:5 of 5 (100.0%)
Same Version:3 (60.0%)
Same OS:1 (20.0%)
From: meelmva at hotmail dot com Assigned: cmb (profile)
Status: Closed Package: imagick (PECL)
PHP Version: 7.4.21 OS: Docker on Debian 10.9 on WSL2
Private report: No CVE-ID: None
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 [2021-07-08 13:10 UTC] meelmva at hotmail dot com 
Description:
------------
When creating a pseudo image with newPseudoImage() and a pseudoString "canvas:white" a ImagickException is thrown with the message:

open_basedir restriction in effect. File(canvas:white) is not within the allowed path(s) in /path/to/script.php

When running the script on PHP 7.4.20 no error is given.

To test this, make sure that the open_basedir configuration option is set to the current directory containing the test script.

Test script:
---------------
<?php

ini_set('display_errors', 1);
error_reporting(E_ALL);

$blankPage = new \Imagick();
$blankPage->newPseudoImage(10, 10, "canvas:white");

echo 'finished';

Expected result:
----------------
newPseudoImage should not throw a Exception and "finished" should be printed.

Actual result:
--------------
A ImagickException is thrown.

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 [2021-07-08 13:18 UTC] cmb@php.net 
Are you using the same imagick version with PHP 7.4.20 and
7.4.21?
 [2021-07-08 13:33 UTC] meelmva at hotmail dot com 
Yes, they both have version 3.5.0 of the module and 6.9.10-23 of ImageMagick.

I checked it with the following command:
php -i |grep "imagick module version"

The result is:
imagick module version => 3.5.0

ImageMagick is version:
ImageMagick 6.9.10-23 Q16 x86_64 20190101 https://imagemagick.org

If have checked it by running the following command in the interactive PHP shell (php -a):
print_r(imagick::getVersion());
 [2021-07-08 17:12 UTC] meelmva at hotmail dot com
-Operating System: Debian GNU/Linux 10.9 +Operating System: Docker on Debian 10.9 on WSL2
 [2021-07-08 17:12 UTC] meelmva at hotmail dot com 
Changes OS to better represent the environment.
 [2021-07-10 01:15 UTC] me at brian dot tw 
Same problem here on PHP 7.4.39 running on 4.19.0-0.bpo.16-amd64 #1 SMP Debian 4.19.181-1~deb9u1 (2021-03-29) x86_64.

My hosting provider allows me to roll back to an older version, and the code works flawlessly there.

Code
---:
  <?php
        $youtube_background = new Imagick();
        $youtube_background->newPseudoImage(2560, 1440, "canvas:black");
        ...


Output on PHP 7.4.39
-------------------:
  Fatal error: Uncaught ImagickException: open_basedir restriction in effect. 
  File(canvas:black) is not within the allowed path(s) in /var/www/html/XXX/index.php:3
  Stack trace:
  #0 /var/www/html/XXX/index.php(3): Imagick->newpseudoimage(2560, 1440, 'canvas:black')
  #1 {main}
  thrown in /var/www/html/XXXindex.php on line 3

Output on PHP 7.3.29:
--------------------:
[generates the image like itʼs supposed to]
 [2021-08-02 13:24 UTC] cmb@php.net
-Status: Open +Status: Verified -Assigned To: +Assigned To: cmb
 [2021-08-02 13:24 UTC] cmb@php.net 
<https://github.com/Imagick/imagick/pull/451> submitted.
 [2021-08-09 10:24 UTC] cmb@php.net
-Assigned To: cmb +Assigned To:
 [2021-10-01 10:16 UTC] cmb@php.net
-Status: Verified +Status: Closed -Assigned To: +Assigned To: cmb
 [2021-10-01 10:16 UTC] cmb@php.net 
The fix has been committed:
<https://github.com/Imagick/imagick/commit/3c45bee844e564ae25059ba18e3b93681da63dfd>.
 [2021-10-08 13:35 UTC] xqkeeffdgcxxppsjbm at mrvpt dot com 
The same problem applies to the "pattern:checkerboard" pseudoString
 
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