Bug #54723 [NEW]: getimagesize() incorrectly identifies files as ICO which aren't

From: Date: Thu, 12 May 2011 17:12:46 +0000
Subject: Bug #54723 [NEW]: getimagesize() incorrectly identifies files as ICO which aren't
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-160704@lists.php.net to get a copy of this message 
From:             
Operating system: CentOS 5.5
PHP version:      5.3.6
Package:          GetImageSize related
Bug Type:         Bug
Bug description:getimagesize() incorrectly identifies files as ICO which aren't

Description:
------------
When certain types of files are uploaded, including .MPGs, getimagesize() 
incorrectly identifies them as ICOs with a MIME type of 
'image/vnd.microsoft.icon'. 

I suspect certain files probably have embedded icons in them, which is what
PHP is 
detecting and reporting, but the actual file isn't an ICO.

A ~500K sample file can be found here:  
http://www.smugmug.com/img/video/problem/php-getimagesize.mpg


Expected result:
----------------
I'd expect FALSE to return, since this isn't a picture and isn't a valid
type PHP 
knows about.

Actual result:
--------------
It returns this array:

array(0 => 45,
1 => 82,
2 => 17,
3 => 'width="45" height="82"',
'bits' = 65023,
'mime' = 'image/vnd.microsoft.icon');

-- 
Edit bug report at http://bugs.php.net/bug.php?id=54723&edit=1
-- 
Try a snapshot (PHP 5.2):            http://bugs.php.net/fix.php?id=54723&r=trysnapshot52
Try a snapshot (PHP 5.3):            http://bugs.php.net/fix.php?id=54723&r=trysnapshot53
Try a snapshot (trunk):              http://bugs.php.net/fix.php?id=54723&r=trysnapshottrunk
Fixed in SVN:                        http://bugs.php.net/fix.php?id=54723&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=54723&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=54723&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=54723&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=54723&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=54723&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=54723&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=54723&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=54723&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=54723&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=54723&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=54723&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=54723&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=54723&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=54723&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=54723&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=54723&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=54723&r=mysqlcfg

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