From:             doppelbauer at gmx dot net
Operating system: any
PHP version:      5.2.4
PHP Bug Type:     GetImageSize related
Bug description:  memcmp does not check full array

Description:
------------
Don't know, if this is a bug in the "getimagesize()" function.


The "php_getimagetype()" compares just 3 bytes of the 4-byte array.
Source code: /ext/standard/image.c


PHPAPI int php_getimagetype(php_stream * stream, char *filetype
TSRMLS_DC)
{
    ...
    PHPAPI const char php_sig_psd[4] = {'8', 'B', 'P', 'S'};
    ...
    } else if (!memcmp(filetype, php_sig_psd, 3)) {
    ...
}


-- 
Edit bug report at http://bugs.php.net/?id=42500&edit=1
-- 
Try a CVS snapshot (PHP 4.4): 
http://bugs.php.net/fix.php?id=42500&r=trysnapshot44
Try a CVS snapshot (PHP 5.2): 
http://bugs.php.net/fix.php?id=42500&r=trysnapshot52
Try a CVS snapshot (PHP 6.0): 
http://bugs.php.net/fix.php?id=42500&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=42500&r=fixedcvs
Fixed in release:             
http://bugs.php.net/fix.php?id=42500&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=42500&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=42500&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=42500&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=42500&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=42500&r=notwrong
Not enough info:              
http://bugs.php.net/fix.php?id=42500&r=notenoughinfo
Submitted twice:              
http://bugs.php.net/fix.php?id=42500&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=42500&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=42500&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=42500&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=42500&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=42500&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=42500&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=42500&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=42500&r=mysqlcfg

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