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Bug #19434 oci8 + ldap -> crash
Submitted: 2002-09-16 06:49 UTC Modified: 2003-10-19 10:24 UTC
Votes:3
Avg. Score:5.0 ± 0.0
Reproduced:3 of 3 (100.0%)
Same Version:0 (0.0%)
Same OS:0 (0.0%)
From: ronan dot salmon at staff dot ittralee dot ie Assigned:
Status: No Feedback Package: OCI8 related
PHP Version: 4.3.3RC4-dev OS: redhat 7.3
Private report: No CVE-ID: None
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From: ronan dot salmon at staff dot ittralee dot ie
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 [2002-09-16 06:49 UTC] ronan dot salmon at staff dot ittralee dot ie 
php-4.2.3
apache-1.3.23-14
redhat 7.3
kernel 2.4.18-10 i686
oracle 9.0.1
openldap 2.0.23

Configure command :
 './configure' 'i386-redhat-linux' '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc' '--datadir=/usr/share' '--includedir=/usr/include' '--libdir=/usr/lib' '--libexecdir=/usr/libexec' '--localstatedir=/var' '--sharedstatedir=/usr/com' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--prefix=/usr' '--with-config-file-path=/etc' '--enable-force-cgi-redirect' '--disable-debug' '--enable-pic' '--disable-rpath' '--enable-inline-optimization' '--with-bz2' '--with-db3' '--with-curl' '--with-dom=/usr' '--with-exec-dir=/usr/bin' '--with-freetype-dir=/usr' '--with-png-dir=/usr' '--with-gd' '--enable-gd-native-ttf' '--with-ttf' '--with-gdbm' '--with-gettext' '--with-ncurses' '--with-gmp' '--with-iconv' '--with-jpeg-dir=/usr' '--with-openssl' '--with-png' '--with-pspell' '--with-regex=system' '--with-xml' '--with-expat-dir=/usr' '--with-zlib' '--with-layout=GNU' '--enable-bcmath' '--enable-debugger' '--enable-exif' '--enable-ftp' '--enable-magic-quotes' '--enable-safe-mode' '--enable-sockets' '--enable-sysvsem' '--enable-sysvshm' '--enable-discard-path' '--enable-track-vars' '--enable-trans-sid' '--enable-yp' '--enable-wddx' '--without-oci8' '--with-imap=shared' '--with-imap-ssl' '--with-kerberos=/usr/kerberos' '--with-ldap=shared' '--with-mysql=shared,/usr' '--with-oci8=shared,/home/oracle/Oracle-9.0.1' '--enable-sigchild' '--with-pgsql=shared' '--with-snmp=shared,/usr' '--with-snmp=shared' '--enable-ucd-snmp-hack' '--with-unixODBC=shared' '--enable-memory-limit' '--enable-bcmath' '--enable-shmop' '--enable-versioning' '--enable-calendar' '--enable-dbx' '--enable-dio' '--enable-mcal' '--enable-mbstring' '--enable-mbstr-enc-trans' '--with-apxs=/usr/sbin/apxs'

If I use ldap functions only, everything is fine.
If I use oci8 functions only, everything is fine.

If in the same script I use oci8 and ldap functions, apache crashes :
[Mon Sep 16 12:44:39 2002] [notice] child pid 31257 exit signal Segmentation fault (11)

here the script :
<?
	include("../config/oci8.php");
	include("../config/settings.php");

	$strLogin = "test";
	$strPasswd = "test";

	$connLDAP = ldap_connect(DEFAULT_LDAP_HOSTNAME);
	if (!$connLDAP)
	{
		echo "Failed to connect to " . DEFAULT_LDAP_HOSTNAME;
		exit;
	}

	if (!$strPasswd)
	{
		// generate a bogus password to pass if the user doesn't give us one
		// this gets around systems that are anonymous search enabled
		$strPasswd = crypt(microtime());
	}
	
	// Lookup user
	@ldap_bind($connLDAP);
   	$arrInfo = ldap_get_entries($connLDAP, ldap_search($connLDAP, DEFAULT_STAFF_EMAIL_PEOPLE, "uid=$strLogin"));
	$strDN = $arrInfo[0]["dn"];

	$boolLogin = @ldap_bind($connLDAP, $strDN, $strPasswd);
	if (!$boolLogin)
	{
		echo "<BR>Wrong username or password!<P>\n";
		exit;
	}

	// Logged in successfully
	
	$DB =  ocilogon($strUser, $strPassword, $strDB);
	if (! $DB)
	{
		$err = OCIError();
		echo "Can not connect to $strDB : $err<B>\n";
		die();
	}

	
	$strSQL = "SELECT * FROM Account_Users WHERE ID = '$strLogin'";
	
	$stmt = ociparse($DB, $strSQL);
	ociexecute($stmt, OCI_DEFAULT);

	if (ocifetch($stmt))
	{
		echo "Success";
	} else {
		echo "Failed";
	}
	ocilogoff($DB);

?>

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 [2002-09-16 07:13 UTC] sniper@php.net 
Oracle has it's own ldap stuff. You can't compile both openldap and oracle together. But you don't need to:

--with-ldap=/home/oracle/Oracle-9.0.1

works too.
 [2002-09-26 20:22 UTC] sniper@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php4-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php4-win32-latest.zip

Reduce your configure options to bare minimum,
only use --with-apxs, --with-oci8 and --with-ldap and
don't compile them as shared!

Do this using the latest snapshot above.
 [2003-07-16 14:31 UTC] sniper@php.net 
Can you try and reduce your script to smallest possible that causes the crash? (like with only the ldap stuff?)
 [2003-07-17 03:40 UTC] ronan dot salmon at staff dot ittralee dot ie 
Sorry, I don't know what I've done yesterday but in fact LDAP doesn't work alone anymore.

Here the script :
<?php
	include('config.php');

	$connLDAP = ldap_connect('10.10.1.19');
	if (!$connLDAP)
	{
		echo 'Failed to connect to 10.10.1.19';
		exit;
	}

	
	// Lookup user
	@ldap_bind($connLDAP);
	$ldapsearch = ldap_search($connLDAP, 'ou=people,ou=staff,dc=ittralee,dc=ie', "uid=$strLogin");
   	$arrInfo = ldap_get_entries($connLDAP, $ldapsearch);

	$boolLogin = @ldap_bind($connLDAP, $strDN, $strPasswd);
	if (!$boolLogin)
	{
		echo "<BR>Wrong username or password!<P>\n";
		exit;
	}
?>

I'm using the same php as yesterday.

[~/php]# gdb ./php4-STABLE-200307160330/sapi/cgi/php login.php
(gdb) run login.php
Starting program: /root/php/php4-STABLE-200307160330/sapi/cgi/php login.php
[New Thread 16384 (LWP 23469)]
 
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 16384 (LWP 23469)]
0x40a71a34 in _int_free () from /lib/libc.so.6
(gdb) bt
#0  0x40a71a34 in _int_free () from /lib/libc.so.6
#1  0x40a709cc in free () from /lib/libc.so.6
#2  0x08065d81 in zif_ldap_get_entries (ht=2, return_value=0x8208040,
    this_ptr=0x0, return_value_used=1, tsrm_ls=0x40d76440)
    at /root/php/php4-STABLE-200307160330/ext/ldap/ldap.c:953
#3  0x0813ce45 in execute (op_array=0x8203028, tsrm_ls=0x81876b0)
    at /root/php/php4-STABLE-200307160330/Zend/zend_execute.c:1616
#4  0x0812f7f1 in zend_execute_scripts (type=8, tsrm_ls=0x81876b0, retval=0x0,
    file_count=3) at /root/php/php4-STABLE-200307160330/Zend/zend.c:886
#5  0x08106305 in php_execute_script (primary_file=0xbffff980,
    tsrm_ls=0x81876b0) at /root/php/php4-STABLE-200307160330/main/main.c:1685
#6  0x08142609 in main (argc=2, argv=0xbffffa14)
    at /root/php/php4-STABLE-200307160330/sapi/cgi/cgi_main.c:1542
#7  0x40a195cd in __libc_start_main () from /lib/libc.so.6
 [2003-10-14 21:02 UTC] sniper@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php4-STABLE-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php4-win32-STABLE-latest.zip
 [2003-10-19 10:24 UTC] sniper@php.net 
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Open". Thank you.
 [2003-11-25 11:29 UTC] pyrox_pro at hotmail dot com 
Similar issue, mine happens on Bind.

echo "<BR>Connecting...";
$ds=ldap_connect("ldaps://".$ldap['SERV']."/") or die("<BR>Died.");
echo "<BR> Connection Established: $ds";
echo "<BR> BINDING...";
$r=ldap_bind($ds,$ldap['user'],$ldap['pass']);
echo "<BR> BIND COMPLETE.";

This results in a page cannot be found.

If I comment this out:
echo "<BR>Connecting...";
$ds=ldap_connect("ldaps://".$ldap['SERV']."/") or die("<BR>Died.");
echo "<BR> Connection Established: $ds";
echo "<BR> BINDING...";
##$r=ldap_bind($ds,$ldap['user'],$ldap['pass']);
echo "<BR> BIND COMPLETE.";

The page comes up and it seems to work fine.

I have let the thing spin forever with no response.

I am using php 4.3.4 and LDAP:

ldap
LDAP Support  enabled  
RCS Version  $Id: ldap.c,v 1.130.2.9 2003/10/07 00:36:27 iliaa Exp $  
Total Links  0/unlimited  
API Version  2004  
Vendor Name  OpenLDAP  
Vendor Version  20026  

OCI8 Support  enabled  
Revision  $Revision: 1.183.2.5 $  
Oracle Version  8.1  
Compile-time ORACLE_HOME  /u01/app/oracle/product/8.1.6  
Libraries Used  no value  

OpenSSL support  enabled  
OpenSSL Version  OpenSSL 0.9.7 31 Dec 2002
 [2003-11-25 11:35 UTC] pyrox_pro at hotmail dot com 
I have just confirmed that it is:

[Tue Nov 25 10:15:44 2003] [notice] child pid 25048 exit signal Segmentation fault (11)

The ldap_bind is causing a seg fault.
 
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