Bug #55259 [Csd]: openssl extension does not get the DH parameters from DH key resource

Edit report at https://bugs.php.net/bug.php?id=55259&edit=1 ID: 55259 Updated by: bukka@php.net Reported by: peter at vereshagin dot org Summary: openssl extension does not get the DH parameters from DH key resource Status: Closed Type: Bug Package: OpenSSL related Operating System: freebsd-7.4 PHP Version: 5.3.6 Assigned To: bukka Block user comment: N Private report: N New Comment: Just to clarify what was wrong here. The openssl_pkey_new requires "p" param in binary form (not hex) as can be seen here: https://github.com/php/php-src/commit/6b9f31ab741eea5c2e590b312827f5a779cd1773#diff-9bf073d181316d0c69cc3194770f705cR15 The problem was that the key generation result (that was failing) wasn't checked and the function did not fail which caused segfault. It's been fixed in the commit above. Previous Comments: ------------------------------------------------------------------------ [2015-08-27 19:17:50] bukka@php.net Automatic comment on behalf of bukka Revision: http://git.php.net/?p=php-src.git;a=commit;h=c39336d1d866866de629695fbd9971fb48f27ea9 Log: Fix bug #55259 (openssl extension does not get the DH parameters from DH key resource) ------------------------------------------------------------------------ [2015-08-27 19:02:49] bukka@php.net Automatic comment on behalf of bukka Revision: http://git.php.net/?p=php-src.git;a=commit;h=c39336d1d866866de629695fbd9971fb48f27ea9 Log: Fix bug #55259 (openssl extension does not get the DH parameters from DH key resource) ------------------------------------------------------------------------ [2015-08-25 19:33:22] bukka@php.net Yeah this actually segfaults on mine. The problem is that "p" is not in hex but it doesn't check the key generation result so it's not failing correctly. I have got a fix already that I merge this week (hopefully tomorrow): https://github.com/php/php-src/compare/PHP-5.6...bukka:bug55259?expand=1 ------------------------------------------------------------------------ [2011-07-21 09:53:02] peter at vereshagin dot org Description: ------------ This is the same for lang/php5 port as of 5.3.6_1 and for the SVN version as of: === Path: . URL: https://svn.php.net/repository/php/php-src/branches/PHP_5_3 Repository Root: https://svn.php.net/repository Repository UUID: c90b9560-bf6c-de11-be94-00142212c4b1 Revision: 313330 Node Kind: directory Schedule: normal Last Changed Author: stas Last Changed Rev: 313316 Last Changed Date: 2011-07-17 11:03:19 +0400 (Sun, 17 Jul 2011) === I had rebuilt the security/php5-openssl port, too with these svn sources rewriting from them with 'rsync -rlcC' right after the 'make extract'. Current workaround is to disable the openssl extension and use a different extension for diffie-hellman algorithm Below is the 'php -i' output: === PHP Version 5.3.7RC4-dev System FreeBSD teh.ost 7.4-STABLE FreeBSD 7.4-STABLE #10: Mon May 2 16:12:55 MSD 2011 peter@vereshagin.org:/usr/local/obj/usr/local/src/sys/JUICY i386 Build Date Jul 21 2011 16:18:28 Configure Command './configure' '--with-layout=GNU' '--localstatedir=/var' '--with-config-file-scan-dir=/usr/local/etc/php' '--disable-all' '--enable-libxml' '--with-libxml-dir=/usr/local' '--with-pcre-regex=/usr/local' '--with-zlib-dir=/usr' '--program-prefix=' '--disable-cli' '--enable-embed=shared' '--enable-fpm' '--with-fpm-user=www' '--with-fpm-group=www' '--with-regex=php' '--with-zend-vm=CALL' '--enable-debug' '--enable-zend-multibyte' '--prefix=/usr/local' '--mandir=/usr/local/man' '--infodir=/usr/local/info/' '--build=i386-portbld-freebsd7.4' Server API FPM/FastCGI Virtual Directory Support disabled Configuration File (php.ini) Path /usr/local/etc Loaded Configuration File /usr/local/etc/php.ini Scan this dir for additional .ini files /usr/local/etc/php Additional .ini files parsed /usr/local/etc/php/extensions.ini PHP API 20090626 PHP Extension 20090626 Zend Extension 220090626 Zend Extension Build API220090626,NTS,debug PHP Extension Build API20090626,NTS,debug Debug Build yes Thread Safety disabled Zend Memory Manager enabled Zend Multibyte Support enabled IPv6 Support enabled Registered PHP Streams php, file, glob, data, http, ftp, compress.zlib, compress.bzip2, zip, https, ftps Registered Stream Socket Transports tcp, udp, unix, udg, ssl, sslv3, sslv2, tls Registered Stream Filters string.rot13, string.toupper, string.tolower, string.strip_tags, convert.*, consumed, dechunk, zlib.*, bzip2.*, convert.iconv.*, mcrypt.*, mdecrypt.* This server is protected with the Suhosin Patch 0.9.10 Copyright (c) 2006-2007 Hardened-PHP Project Copyright (c) 2007-2011 SektionEins GmbH This program makes use of the Zend 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xsl XSL enabled libxslt Version 1.1.26 libxslt compiled against libxml Version 2.7.7 EXSLT enabled libexslt Version 1.1.26 yaz YAZ Support enabled PHP/YAZ Version 1.0.14 YAZ Version 4.0.11 Compiled with YAZ version 4.0.11 zip Zip enabled Extension Version $Id: php_zip.c 308107 2011-02-07 16:20:16Z pajoye $ Zip version 1.9.1 Libzip version 0.9.0 zlib ZLib Support enabled Stream Wrapper support compress.zlib:// Stream Filter support zlib.inflate, zlib.deflate Compiled Version 1.2.3 Linked Version 1.2.3 Directive Local Value Master Value zlib.output_compression Off Off zlib.output_compression_level -1 -1 zlib.output_handler no value no value Additional Modules Module Name readline sysvsem sysvshm Environment Variable Value HOME /nonexistent USER fcgi PHP Variables Variable Value _SERVER["HOME"] /nonexistent _SERVER["USER"] fcgi _SERVER["FCGI_ROLE"] RESPONDER _SERVER["SCRIPT_FILENAME"] /var/www/screwed/op/rp/www/dh_fail.php _SERVER["QUERY_STRING"] no value _SERVER["REQUEST_METHOD"] GET _SERVER["CONTENT_TYPE"] no value _SERVER["CONTENT_LENGTH"] no value _SERVER["SCRIPT_NAME"] /dh_fail.php _SERVER["REQUEST_URI"] /dh_fail.php _SERVER["DOCUMENT_URI"] /dh_fail.php _SERVER["DOCUMENT_ROOT"] /var/www/screwed/op/rp/www _SERVER["SERVER_PROTOCOL"] HTTP/1.1 _SERVER["GATEWAY_INTERFACE"] CGI/1.1 _SERVER["SERVER_SOFTWARE"] nginx/1.0.4 _SERVER["REMOTE_ADDR"] 127.0.0.1 _SERVER["REMOTE_PORT"] 54023 _SERVER["SERVER_ADDR"] 127.0.0.1 _SERVER["SERVER_PORT"] 80 _SERVER["SERVER_NAME"] teh.ost _SERVER["REDIRECT_STATUS"] 200 _SERVER["HTTP_HOST"] teh.ost _SERVER["HTTP_USER_AGENT"] Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; ru-ru) _SERVER["HTTP_ACCEPT"] application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 _SERVER["HTTP_ACCEPT_ENCODING"] gzip _SERVER["HTTP_ACCEPT_LANGUAGE"] en-us;q=0.750 _SERVER["HTTP_X_FORWARDED_FOR"] 127.0.0.1 _SERVER["HTTP_CACHE_CONTROL"] max-age=259200 _SERVER["HTTP_CONNECTION"] keep-alive _SERVER["PHP_SELF"] /dh_fail.php _SERVER["REQUEST_TIME"] 1311255913 _SERVER["argv"] Array ( ) _SERVER["argc"] 0 _ENV["HOME"] /nonexistent _ENV["USER"] fcgi _ENV["FCGI_ROLE"] RESPONDER _ENV["SCRIPT_FILENAME"] /var/www/screwed/op/rp/www/dh_fail.php _ENV["QUERY_STRING"] no value _ENV["REQUEST_METHOD"] GET _ENV["CONTENT_TYPE"] no value _ENV["CONTENT_LENGTH"] no value _ENV["SCRIPT_NAME"] /dh_fail.php _ENV["REQUEST_URI"] /dh_fail.php _ENV["DOCUMENT_URI"] /dh_fail.php _ENV["DOCUMENT_ROOT"] /var/www/screwed/op/rp/www _ENV["SERVER_PROTOCOL"] HTTP/1.1 _ENV["GATEWAY_INTERFACE"] CGI/1.1 _ENV["SERVER_SOFTWARE"] nginx/1.0.4 _ENV["REMOTE_ADDR"] 127.0.0.1 _ENV["REMOTE_PORT"] 54023 _ENV["SERVER_ADDR"] 127.0.0.1 _ENV["SERVER_PORT"] 80 _ENV["SERVER_NAME"] teh.ost _ENV["REDIRECT_STATUS"] 200 _ENV["HTTP_HOST"] teh.ost _ENV["HTTP_USER_AGENT"] Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; ru-ru) _ENV["HTTP_ACCEPT"] application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 _ENV["HTTP_ACCEPT_ENCODING"] gzip _ENV["HTTP_ACCEPT_LANGUAGE"] en-us;q=0.750 _ENV["HTTP_X_FORWARDED_FOR"] 127.0.0.1 _ENV["HTTP_CACHE_CONTROL"] max-age=259200 _ENV["HTTP_CONNECTION"] keep-alive PHP License This program is free software; you can redistribute it and/or modify it under the terms of the PHP License as published by the PHP Group and included in the distribution in the file: LICENSE This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. If you did not receive a copy of the PHP license, or have any questions about PHP licensing, please contact license@php.net. Test script: --------------- <?php $dh_details = array( 'p' => 'dcf93a0b883972ec0e19989ac5a2ce310e1d37717e8d9571bb7623731866e61ef75a2e27898b057f9891c2e27a639c3f29b60814581cd3b2ca3986d2683705577d45c2e7e52dc81c7a171876e5cea74b1448bfdfaf18828efd2519f14e45e3826634af1949e5b535cc829a483b8a76223e5d490a257f05bdff16f2fb22c583ab', 'g' => '02' ); $dh = openssl_pkey_new(array('dh'=>$dh_details)); $details = openssl_pkey_get_details($dh); print_r( $details ); ?> Expected result: ---------------- Non-empty DH details Actual result: -------------- Array ( [bits] => 0 [key] => -----BEGIN PUBLIC KEY----- -----END PUBLIC KEY----- [type] => 2 ) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=55259&edit=1