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Bug 1408301 - php openssl extension does not work with non-default crypto engines
Summary: php openssl extension does not work with non-default crypto engines
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: php
Version: 7.3
Hardware: Unspecified
OS: Unspecified
unspecified
high
Target Milestone: rc
: ---
Assignee: Remi Collet
QA Contact: David Jež
URL:
Whiteboard:
Depends On:
Blocks: 1420851 1549616 1562205
TreeView+ depends on / blocked
 
Reported: 2016-12-22 20:14 UTC by David Mulford
Modified: 2021-12-10 14:51 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2018-10-30 11:26:06 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
Patch containing addition of OPENSSL_config() function (525 bytes, patch)
2016-12-22 20:14 UTC, David Mulford 		no flags Details | Diff
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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2018:3228 0 None None None 2018-10-30 11:26:16 UTC

Description David Mulford 2016-12-22 20:14:56 UTC 
Created attachment 1234879 [details]
Patch containing addition of OPENSSL_config() function

Description of problem:
PHP openssl extension ignores OpenSSL configuration files. It doesn't read neither the default /etc/pki/tls/openssl.cnf file, nor does it honour the OPENSSL_CONF environment variable. 

Customers using a non-default openssl engine (like GOST) are using the openssl.cnf file to enable this in the openssl extension. The fact that PHP ignores /etc/pki/tls/openssl.cnf (or any other custom OpenSSL file) makes it impossible to use GOST cipher in PHP code as well as any other non-default OpenSSL engines and ciphers.

Looking at source in php-5.4.16/ext/openssl/openssl.c reveals that PHP doesn't invoke OPENSSL_config(), that's why configuration files are not loaded.

Version-Release number of selected component (if applicable):
* php-5.4.16-42.el7
* RHEL 7.3

How reproducible:
Always

Additional info:
A customer has given the attached patch which calls the OPENSSL_config() function, and has asked for the inclusion of this in RHEL 7.3.
Comment 2 Remi Collet 2017-07-13 09:09:49 UTC 
PHP don't use OPENSSL_init, but load configuration file using the CONF_load() function instead.

Configuration can be set per environment OPENSSL_CONF or in code using the "config" option is lot of functions call.

Test using upstream test case:
http://git.php.net/?p=php-src.git;a=blob_plain;f=ext/openssl/tests/021.phpt;h=391b6a5279f99875696a881693f0123c1afc795b;hb=refs/heads/PHP-5.4.16


$ strace php 021.phpt 2>&1 | grep openssl.cnf
open("/etc/pki/tls/openssl.cnf", O_RDONLY) = 3
open("/home/remi/php-5.4.16/ext/openssl/tests/openssl.cnf", O_RDONLY) = 3
open("/etc/pki/tls/openssl.cnf", O_RDONLY) = 3
open("/home/remi/php-5.4.16/ext/openssl/tests/openssl.cnf", O_RDONLY) = 3
open("/etc/pki/tls/openssl.cnf", O_RDONLY) = 3
open("/home/remi/php-5.4.16/ext/openssl/tests/openssl.cnf", O_RDONLY) = 3
open("/etc/pki/tls/openssl.cnf", O_RDONLY) = 3
open("/home/remi/php-5.4.16/ext/openssl/tests/openssl.cnf", O_RDONLY) = 3
open("/etc/pki/tls/openssl.cnf", O_RDONLY) = 3
open("/home/remi/php-5.4.16/ext/openssl/tests/openssl.cnf", O_RDONLY) = 3
open("/etc/pki/tls/openssl.cnf", O_RDONLY) = 3
open("/home/remi/php-5.4.16/ext/openssl/tests/openssl.cnf", O_RDONLY) = 3

Both system and test configuration files are used

$ cp /etc/pki/tls/openssl.cnf /tmp
$ export OPENSSL_CONF=/tmp/openssl.cnf
$ strace php 021.phpt 2>&1 | grep openssl.cnf
open("/tmp/openssl.cnf", O_RDONLY)      = 3
open("/home/remi/php-5.4.16/ext/openssl/tests/openssl.cnf", O_RDONLY) = 3
open("/tmp/openssl.cnf", O_RDONLY)      = 3
open("/home/remi/php-5.4.16/ext/openssl/tests/openssl.cnf", O_RDONLY) = 3
open("/tmp/openssl.cnf", O_RDONLY)      = 3
open("/home/remi/php-5.4.16/ext/openssl/tests/openssl.cnf", O_RDONLY) = 3
open("/tmp/openssl.cnf", O_RDONLY)      = 3
open("/home/remi/php-5.4.16/ext/openssl/tests/openssl.cnf", O_RDONLY) = 3
open("/tmp/openssl.cnf", O_RDONLY)      = 3
open("/home/remi/php-5.4.16/ext/openssl/tests/openssl.cnf", O_RDONLY) = 3
open("/tmp/openssl.cnf", O_RDONLY)      = 3
open("/home/remi/php-5.4.16/ext/openssl/tests/openssl.cnf", O_RDONLY) = 3

Both system redirected and test configuration files are used
Comment 5 Remi Collet 2017-08-24 09:33:49 UTC 
PR open to raise discussion with upstream maintainer
https://github.com/php/php-src/pull/2706
Comment 6 Remi Collet 2017-09-06 10:35:25 UTC 
Applied in upstream PHP 7.2

For OpenSSL 1.1
https://github.com/php/php-src/commit/58df6a3b61f5cb914d899fbb44eecadad8098700

For OpenSSL 1.0
https://github.com/php/php-src/commit/1f843a8fb50de77a3f53a6b892a46d9e0afdfdd7
Comment 15 errata-xmlrpc 2018-10-30 11:26:06 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:3228
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