From: Operating system: linux PHP version: 5.4.0RC1 Package: *Regular Expressions Bug Type: Bug Bug description:stack/memory exhaustion
Description:
------------
pcre allow to stack or heap memory exhaustion
stack
cx () cx64:/www$ cat crash0.php
<?php
preg_match("/((.*)((!?.*)+)\\w+)/iU",str_repeat(" ",4096),$exxx);
?>
cx () cx64:/www$ php crash0.php
Segmentation fault
--
Edit bug report at https://bugs.php.net/bug.php?id=60264&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=60264&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=60264&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=60264&r=trysnapshottrunk
Fixed in SVN:
https://bugs.php.net/fix.php?id=60264&r=fixed
Fixed in SVN and need be documented:
https://bugs.php.net/fix.php?id=60264&r=needdocs
Fixed in release:
https://bugs.php.net/fix.php?id=60264&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=60264&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=60264&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=60264&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=60264&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=60264&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=60264&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=60264&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=60264&r=globals
PHP 4 support discontinued:
https://bugs.php.net/fix.php?id=60264&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=60264&r=dst
IIS Stability:
https://bugs.php.net/fix.php?id=60264&r=isapi
Install GNU Sed:
https://bugs.php.net/fix.php?id=60264&r=gnused
Floating point limitations:
https://bugs.php.net/fix.php?id=60264&r=float
No Zend Extensions:
https://bugs.php.net/fix.php?id=60264&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=60264&r=mysqlcfg
