From: valexa at nextcode dot org
Operating system: Windows NT 2k/xp
PHP version: 4.4.2
PHP Bug Type: Sockets related
Bug description: php 4.4.2 remote fopen php4ts access violation crash
Description:
------------
How i tested :
tested on win200 and winxp , official binary releases virgin unmodified ,
tested also with no extensions loaded , same behaviour ,
tested also with the 4.4.1 php4ts.dll on 4.4.2 , no crash
Upon running any php script that reads a url/remote file i get a crash in
php 4.4.2
The instruction at "0x100c5fca" referenced memory at "0x00000035". The
memory could not be "read".
Unhandled exception in php.exe (PHP4TS.DLL): 0xC0000005: Access
Violation.
assembly dump folows
100C5FAB mov eax,dword ptr [esi+8]
100C5FAE or eax,80000000h
100C5FB3 mov dword ptr [esi+8],eax
100C5FB6 pop esi
100C5FB7 ret
100C5FB8 mov eax,[10161E18]
100C5FBD test eax,eax
100C5FBF je 100C5FC3
100C5FC1 call eax
100C5FC3 mov edx,dword ptr [edi]
100C5FC5 mov eax,[10161D8C]
100C5FCA mov eax,dword ptr [edx+eax*4-4] <<<<-crashes here
100C5FCE cmp esi,dword ptr [eax]
100C5FD0 jne 100C5FD8
100C5FD2 mov ecx,dword ptr [esi]
100C5FD4 mov dword ptr [eax],ecx
100C5FD6 jmp 100C5FDF
100C5FD8 mov edx,dword ptr [esi+4]
100C5FDB mov eax,dword ptr [esi]
100C5FDD mov dword ptr [edx],eax
100C5FDF mov eax,dword ptr [esi]
100C5FE1 test eax,eax
100C5FE3 je 100C5FEB
Reproduce code:
---------------
<html>
<?php
echo "crash now";
$available = file ('http://www.php.net/downloads.php');
echo "hadn't crashed";
?>
</html>
Expected result:
----------------
C:\php-4.4.1-Win32>php bug.php
X-Powered-By: PHP/4.4.1
Content-type: text/html
</html>
crash nowhadn't crashed</html>
C:\php-4.4.1-Win32>
Actual result:
--------------
C:\php-4.4.2-Win32>php bug.php
X-Powered-By: PHP/4.4.2
Content-type: text/html
</html>
crash now
C:\php-4.4.2-Win32>
--
Edit bug report at http://bugs.php.net/?id=36350&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=36350&r=trysnapshot44
Try a CVS snapshot (PHP 5.1):
http://bugs.php.net/fix.php?id=36350&r=trysnapshot51
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=36350&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=36350&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=36350&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=36350&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=36350&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=36350&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=36350&r=support
Expected behavior: http://bugs.php.net/fix.php?id=36350&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=36350&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=36350&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=36350&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=36350&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=36350&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=36350&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=36350&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=36350&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=36350&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=36350&r=mysqlcfg
