From:             david dot tulloh at anu dot edu dot au
Operating system: Debian Linux
PHP version:      5CVS-2005-08-09 (dev)
PHP Bug Type:     Class/Object related
Bug description:  Buffer overflow with serialized object

Description:
------------
The attached code triggers what looks to me like a buffer overflow.  I've
been able to reproduce it on two different computers running a current and
slightly older version of PHP CVS.  Reproducable through both the CLI and
Apache2. 

I stumbled across this while trying to extend SimpleTest and then cut the
code back to the smallest reproduceable subset.

I suspect that the problem starts when serializing-deserializing the
singleton object.  All the layers of seemingly redundant OOP are then
required to bring out the error.  I really have no idea why though. 

originally sent to [EMAIL PROTECTED]

Reproduce code:
---------------
http://cmhr118130.anu.edu.au:100/overflow.phps

Expected result:
----------------
ClassWithError::__construct - 42 - type = string(14) "BasicSingleton"
ClassWithError::__construct - 44 - type = string(14) "BasicSingleton" 

Actual result:
--------------
(continues past what's shown):
ClassWithError::__construct - 42 - type = string(14) "BasicSingleton"
ClassWithError::__construct - 44 - type = string(137552044) "tI3          
                            PÜ]d_ÀlÔO`F
&&[EMAIL PROTECTED] 1OøO 1ÈOÐP 

-- 
Edit bug report at http://bugs.php.net/?id=34045&edit=1
-- 
Try a CVS snapshot (php4):   http://bugs.php.net/fix.php?id=34045&r=trysnapshot4
Try a CVS snapshot (php5.0): 
http://bugs.php.net/fix.php?id=34045&r=trysnapshot50
Try a CVS snapshot (php5.1): 
http://bugs.php.net/fix.php?id=34045&r=trysnapshot51
Fixed in CVS:                http://bugs.php.net/fix.php?id=34045&r=fixedcvs
Fixed in release:            http://bugs.php.net/fix.php?id=34045&r=alreadyfixed
Need backtrace:              http://bugs.php.net/fix.php?id=34045&r=needtrace
Need Reproduce Script:       http://bugs.php.net/fix.php?id=34045&r=needscript
Try newer version:           http://bugs.php.net/fix.php?id=34045&r=oldversion
Not developer issue:         http://bugs.php.net/fix.php?id=34045&r=support
Expected behavior:           http://bugs.php.net/fix.php?id=34045&r=notwrong
Not enough info:             
http://bugs.php.net/fix.php?id=34045&r=notenoughinfo
Submitted twice:             
http://bugs.php.net/fix.php?id=34045&r=submittedtwice
register_globals:            http://bugs.php.net/fix.php?id=34045&r=globals
PHP 3 support discontinued:  http://bugs.php.net/fix.php?id=34045&r=php3
Daylight Savings:            http://bugs.php.net/fix.php?id=34045&r=dst
IIS Stability:               http://bugs.php.net/fix.php?id=34045&r=isapi
Install GNU Sed:             http://bugs.php.net/fix.php?id=34045&r=gnused
Floating point limitations:  http://bugs.php.net/fix.php?id=34045&r=float
No Zend Extensions:          http://bugs.php.net/fix.php?id=34045&r=nozend
MySQL Configuration Error:   http://bugs.php.net/fix.php?id=34045&r=mysqlcfg

Reply via email to