From: phpbugs at pureftpd dot org
Operating system: any
PHP version: 5.0.4
PHP Bug Type: GD related
Bug description: Denial of service through imagecreatefromgif()
Description:
------------
The following (invalid) picture triggers an infinite loop
in gdImageCreateFromGif() with 100% CPU usage.
Tested on Linux and OpenBSD, PHP4 with GD 1 and PHP5 with
built-in GD.
Reproduce code:
---------------
<?php
imagecreatefromgif('kaboom-gd.gif');
?>
Get kaboom-gd.gif from ftp://ftp.00f.net/misc/kaboom-gd.gif
Expected result:
----------------
No 100% CPU usage.
Actual result:
--------------
100% CPU usage, infinite loop.
--
Edit bug report at http://bugs.php.net/?id=33220&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=33220&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=33220&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=33220&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=33220&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=33220&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=33220&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=33220&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=33220&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=33220&r=support
Expected behavior: http://bugs.php.net/fix.php?id=33220&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=33220&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=33220&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=33220&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=33220&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=33220&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=33220&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=33220&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=33220&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=33220&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=33220&r=mysqlcfg
