#21039 [Bgs->Opn]: crash when IV is not set

ID: 21039 Updated by: derick@php.net Reported By: mbretter@php.net -Status: Bogus +Status: Open Bug Type: mcrypt related Operating System: FreeBSD 4.7 PHP Version: 4.3.0RC3 New Comment: WTF? This is a bug, and I just fixed it. About to commit it to CVS. Derick Previous Comments: ------------------------------------------------------------------------ [2002-12-16 02:44:40] iliaa@php.net Sorry, but your problem does not imply a bug in PHP itself. For a list of more appropriate places to ask for help using PHP, please visit http://www.php.net/support.php as this bug system is not the appropriate forum for asking support questions. Thank you for your interest in PHP. libmcrypt author has already been contacted with the fix to the problem. ------------------------------------------------------------------------ [2002-12-16 02:27:09] mbretter@php.net I'm running FreeBSD 4.7 with libmcrypt 2.5.3. There seems to be a bug in libmcrypt, the crash occurs if you call mcrypt_generic(), but without valid IV. Here's a short script: $td = mcrypt_module_open ('des', '', 'cbc', ''); $iv = mcrypt_create_iv (mcrypt_enc_get_iv_size ($td), MCRYPT_RAND); mcrypt_generic_init ($td, substr($nthash, 0, 7)); $res = mcrypt_generic ($td, $challenge); changing: mcrypt_generic_init ($td, substr($nthash, 0, 7)); to: mcrypt_generic_init ($td, substr($nthash, 0, 7), $iv); solves the problem :-) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=21039&edit=1