From: zbuckholz at hotmail dot com
Operating system: Linux RedHat 9
PHP version: 5.0.0
PHP Bug Type: Reproducible crash
Bug description: Possibly DOS exploit using get_headers function
Description:
------------
Short example below will cause complete exhaustion. Seems to cause loop of
some sort.
<?php
$server_name = ("http://"; . $_SERVER['SERVER_NAME']);
print_r(get_headers($server_name,true));
?>
from apache error log
[Sat Jul 24 22:21:15 2004] [error] server reached MaxClients setting,
consider raising the MaxClients setting
Reproduce code:
---------------
<?php
$server_name = ("http://"; . $_SERVER['SERVER_NAME']);
print_r(get_headers($server_name));
?>
Expected result:
----------------
I expect to see what the documentation says I should see. But in the
example code the $url is being provided to the get_headers function as a
predefined string.
Actual result:
--------------
[Sat Jul 24 22:21:15 2004] [error] server reached MaxClients setting,
consider raising the MaxClients setting
--
Edit bug report at http://bugs.php.net/?id=29373&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=29373&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=29373&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=29373&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=29373&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=29373&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=29373&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=29373&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=29373&r=support
Expected behavior: http://bugs.php.net/fix.php?id=29373&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=29373&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=29373&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=29373&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=29373&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=29373&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=29373&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=29373&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=29373&r=float
