Bug #70315 [Opn->Fbk]: imagecreatefromstring() returns 500 Server Error but page full renderized

From: Date: Tue, 21 Jun 2016 21:32:50 +0000
Subject: Bug #70315 [Opn->Fbk]: imagecreatefromstring() returns 500 Server Error but page full renderized
References: 1  Groups: php.bugs 
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Edit report at https://bugs.php.net/bug.php?id=70315&edit=1

 ID:                 70315
 Updated by:         cmb@php.net
 Reported by:        patriciotarantino at gmail dot com
 Summary:            imagecreatefromstring() returns 500 Server Error but
                     page full renderized
-Status:             Open
+Status:             Feedback
 Type:               Bug
 Package:            GD related
 Operating System:   Ubuntu
 PHP Version:        5.6.12
-Assigned To:        
+Assigned To:        cmb
 Block user comment: N
 Private report:     N

 New Comment:

> If you use imagecreatefromstring() with an invalid string, it
> returns a 500 Internal Server Error in the HTTP headers, […]

Indeed, that is not supposed to happen, and I can't reproduce it,
actually. Please double-check with any of the recent PHP versions
(5.5.36, 5.6.22, 7.0.7).


Previous Comments:
------------------------------------------------------------------------
[2015-08-20 19:24:49] patriciotarantino at gmail dot com

Description:
------------
Condition: display_errors is off.

If you use imagecreatefromstring() with an invalid string, it returns a 500 Internal Server Error in
the HTTP headers, but the page is fully renderized. It should return 200 OK (and the full page), or
a 500 Error but without the full HTML. Not both at the same time.

5.3.10 and 5.4.44 are not affected.
5.5.9 and 5.6.12 are affected.

Test script:
---------------
<?php
ini_set("display_errors", 0);

$data = "iVBORw0KGgoAAAANSUhEUgAAAuwAAAUeCAYAAAAl3WR...LkAAAAAElFTkSuQmCC";
$data = base64_decode($data);
$im = imagecreatefromstring($data);

echo "This should not render";



------------------------------------------------------------------------



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Edit this bug report at https://bugs.php.net/bug.php?id=70315&edit=1

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