Edit report at http://bugs.php.net/bug.php?id=51350&edit=1
ID: 51350
Comment by: tyra3l at gmail dot com
Reported by: slogster at gmail dot com
Summary: recursively including non existing file causes
segfault
Status: Bogus
Type: Bug
Package: Reproducible crash
Operating System: freebsd & linux
PHP Version: 5.2.13
New Comment:
suhosin protects against infinite recursion since 2006.
if you can crash the php engine from userland, then you can reset the
seed
http://www.baohx.com/extras/zendcon/lesserknownsecurityproblemsinphpapplications.pdf
page 33: attacker can get fresh seed by crashing php.
so its not only an inconvinience, but can be a security problem also.
Tyrael
Previous Comments:
------------------------------------------------------------------------
[2010-03-22 17:45:16] [email protected]
Recusrion in PHP leads to a stack overflow for the process, which we
can't properly handle ourselves so the operating system terminates the
PHP process. This is the expected behavior.
------------------------------------------------------------------------
[2010-03-22 17:08:20] slogster at gmail dot com
Description:
------------
function a(){include("/nofile"); a();} a();
/nofine is non existing file
Test script:
---------------
function a(){include("/nofile"); a();} a();
/nofile is non existing file
Expected result:
----------------
should not segfault
Actual result:
--------------
segfault
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/bug.php?id=51350&edit=1
