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Bug #49351 posix_setuid/posix_seteuid/posix_setgid/posix_setegid crashed apache
Submitted: 2009-08-25 00:02 UTC Modified: 2009-09-10 01:00 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:0 (0.0%)
Same OS:0 (0.0%)
From: VJTD3 at VJTD3 dot com Assigned:
Status: No Feedback Package: POSIX related
PHP Version: 5.3.0 OS: Linux
Private report: No CVE-ID: None
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 [2009-08-25 00:02 UTC] VJTD3 at VJTD3 dot com 
Description:
------------
apache Apache/2.2.13:
env CFLAGS="-DBIG_SECURITY_HOLE" ./configure --enable-so && make && make install

php 5.3.0:
./configure --with-apxs2 && make && make install

-DBIG_SECURITY_HOLE allows for root startup (administrative builds for panels and such...) when this flag is used to compile apache, php will crash when posix_setuid posix_seteuid posix_setgid or posix_setegid are used to change the user/group.

Reproduce code:
---------------
<?php

 posix_seteuid(1000);
 posix_setegid(1000);
 posix_setuid(1000);
 posix_setgid(1000);

?>

(make sure you use a number that has an actual user...)

Expected result:
----------------
change to that user.

Actual result:
--------------
php and apache crash.

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 [2009-08-25 06:43 UTC] jani@php.net 
Please try using this snapshot:

  http://snaps.php.net/php5.3-latest.tar.gz
 
For Windows:

  http://windows.php.net/snapshots/

And provide a GDB backtrace if it still crashes.
 [2009-09-01 23:07 UTC] VJTD3 at VJTD3 dot com 
the problem still exists, I'm not sure i can use gdb since it's a problem interfacing with apache. I'll try tonight.
 [2009-09-02 19:15 UTC] jani@php.net 
http://bugs.php.net/bugs-generating-backtrace.php
 [2009-09-10 01:00 UTC] php-bugs at lists dot php dot net 
No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".
 
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