#36206 [NEW]: LDAP in nsswitch.conf causes segfault when resolving hostnames in PHP

From: arnout at argeweb dot nl Operating system: freeBSD 5.4 PHP version: 5.1.2 PHP Bug Type: CGI related Bug description: LDAP in nsswitch.conf causes segfault when resolving hostnames in PHP Description: ------------ Any hostname resolve in PHP causes a segmentation fault. It only happens when this file contains the ldap keyword. When removed, everything works fine. Everything works great when using modphp. It only happens when using the executable. root@host: / # cat /etc/nsswitch.conf group: files ldap group_compat: nis hosts: files dns networks: files passwd: files passwd_compat: nis shells: files We've seen it on two seperate systems. It's on PHP versions 5.0.5, 5.1.1 and 5.1.2 Server #1: openldap 2.2.30 nss_ldap 1.244 php 5.0.5 FreeBSD 5.4-RELEASE-p8 Server #2: nss_ldap-1.239 openldap-client-2.2.27 php 5.1.2 FreeBSD 5.4-RELEASE-p8 Reproduce code: --------------- root@host: / # echo "<? echo gethostbyname('php.net'); ?>" | php root@host: / # echo "<? mysql_connect( 'badgerbadger', '', '' ); ?>" | php #!/usr/local/bin/php <?php // this echo gethostbyname( 'php.net' ); // AND this too mysql_connect( 'blahdieblah', '', '' ); // and anything that resolves. ?> Expected result: ---------------- An IP-address and an error because the mysql host doesn't exist. Actual result: -------------- Segmentation fault on any line that resolves a hostname. -- Edit bug report at http://bugs.php.net/?id=36206&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=36206&r=trysnapshot44 Try a CVS snapshot (PHP 5.1): http://bugs.php.net/fix.php?id=36206&r=trysnapshot51 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=36206&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=36206&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=36206&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=36206&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=36206&r=needscript Try newer version: http://bugs.php.net/fix.php?id=36206&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=36206&r=support Expected behavior: http://bugs.php.net/fix.php?id=36206&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=36206&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=36206&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=36206&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=36206&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=36206&r=dst IIS Stability: http://bugs.php.net/fix.php?id=36206&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=36206&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=36206&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=36206&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=36206&r=mysqlcfg