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Bug #7456 Crash when submitting form with method=post enctype=multipart/form-data
Submitted: 2000-10-25 13:27 UTC Modified: 2002-10-01 13:15 UTC
From: ralf dot ertzinger at gmx dot net Assigned:
Status: Wont fix Package: Reproducible Crash
PHP Version: 3.0.17 OS: Linux 2.2.14-5.0 SMP (Redhat 6.2
Private report: No CVE-ID: None
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From: ralf dot ertzinger at gmx dot net
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 [2000-10-25 13:27 UTC] ralf dot ertzinger at gmx dot net 
A PHP3-script crashes reproducable when it is target of a form-submit operation with a specific encoding (multipart/form-data)
Sample script:

-----------------------
<html>
<head>
        <title>PHP Post test</title>
</head>

<body>
<?
echo "submit:$testen:<br>\n";
if($testen=="now"){
        echo "$tester<br>\n";
        }
?>

<form method="post" action="posttest.php3" enctype="multipart/form-data">
<input type="text" size="10" name="tester" value='<? echo $tester; ?>'>
<input type="submit" value="jetzt" name="testen">
</form>

</body>
</html>
------------
Any other type of encoding works fine.

PHP3 is RPM-built from the latest RedHat sources (php-3.0.17-1.6.2.src.rpm) with two modifications:

* added --with-mysql to the configure call
* added --enable-versioning to the configure call (crash happens with and without PHP4 running parallel)

configure call as reported by phpinfo():
./configure '--prefix=/usr' '--with-apxs=/usr/sbin/apxs' '--with-config-file-path=/etc/httpd' '--enable-safe-mode'
'--with-exec-dir=/usr/bin' '--with-system-regex' '--disable-debug' '--with-zlib' '--with-gdbm' '--with-db2'
'--enable-debugger' '--enable-magic-quotes' '--enable-track-vars' '--enable-sysvsem' '--enable-sysvshm'
'--enable-track-vars' '--enable-versioning' '--with-mysql' '--with-xml' '--with-ftp'

gdb trace follows.

#0  0x40268c0d in setenvif_module () from /usr/lib/apache/libphp3.so
#1  0x402c8244 in php3_module () from /usr/lib/apache/libphp3.so
#2  0x4026e07c in setenvif_module () from /usr/lib/apache/libphp3.so
#3  0x4026e74e in setenvif_module () from /usr/lib/apache/libphp3.so
#4  0x40260466 in setenvif_module () from /usr/lib/apache/libphp3.so
#5  0x40291924 in setenvif_module () from /usr/lib/apache/libphp3.so
#6  0x4023f94c in setenvif_module () from /usr/lib/apache/libphp3.so
#7  0x4023fc68 in setenvif_module () from /usr/lib/apache/libphp3.so
#8  0x4023caa8 in setenvif_module () from /usr/lib/apache/libphp3.so
#9  0x4023cb3f in setenvif_module () from /usr/lib/apache/libphp3.so
#10 0x80535ee in ap_invoke_handler ()
#11 0x8061d0b in ap_some_auth_required ()
#12 0x8061d68 in ap_process_request ()
#13 0x805bcf0 in ap_child_terminate ()
#14 0x805be57 in ap_child_terminate ()
#15 0x805bf58 in ap_child_terminate ()
#16 0x805c408 in ap_child_terminate ()
#17 0x805ca0f in main ()
#18 0x400ba9cb in __libc_start_main (main=0x805c790 <main>, argc=2, argv=0xbffffbd4, init=0x804f160 <_init>,
    fini=0x807bfbc <_fini>, rtld_fini=0x4000ae60 <_dl_fini>, stack_end=0xbffffbcc) at ../sysdeps/generic/libc-start.c:92

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 [2002-10-01 13:15 UTC] hholzgra@php.net 
We are sorry, but can not support PHP 3 related problems anymore.
Momentum is gathering for PHP 5, and we think supporting PHP 3 will
lead to a waste of resources which we want to put into getting PHP 5
ready. Ofcourse PHP 4 will will continue to be supported for the
forseeable future.

file upload stuff was rewritten for php 4.2
 
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