Last modified: 2014-02-12 23:32:49 UTC

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Bug 44142 - mcrypt_rand_iv() not reliable with MCRYPT_DEV_URANDOM on Windows


Summary:	mcrypt_rand_iv() not reliable with MCRYPT_DEV_URANDOM on Windows

Status:	RESOLVED DUPLICATE of bug 35894

Product:	MediaWiki
Classification:	Unclassified
Component:	Installer (Other open bugs)
Version:	1.20.x
Hardware:	All All

Importance:	Normal normal (vote)
Target Milestone:	---
Assigned To:	Nobody - You can work on this!

URL:
Whiteboard:
Keywords:	upstream

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2013-01-19 02:36 UTC by Mark A. Hershberger
Modified:	2014-02-12 23:32 UTC (History)
CC List:	4 users (show)

See Also:	35894
Web browser:	---
Mobile Platform:	---
Assignee Huggle Beta Tester:	---

Attachments
Add an attachment (proposed patch, testcase, etc.)

Description Mark A. Hershberger 2013-01-19 02:36:01 UTC

Upstream bug is https://bugs.php.net/bug.php?id=52523 but I experienced this today with PHP 5.3.5 on a host where phpinfo reports the system is "Windows NT A1-WHW-B69 6.0 build 6002 (Windows Server 2008 Web Server Edition Service Pack 2) i586"

Webserver died with a fatal error during installation:


           PHP Fatal error:  mcrypt_create_iv() [<a
           href='function.mcrypt-create-iv'>function.mcrypt-create-iv</a>]:
           Could not gather sufficient random data in
           E:\...\Web\includes\CryptRand.php on line 309

As far as I could tell, There was no way to work around this or even see if the error would pop up in the code, so I had to hack CryptRand.php so that MCRYPT_RAND was used instead of MCRYPT_DEV_URANDOM.

Only then could installation complete.

Comment 1 Jesús Martínez Novo (Ciencia Al Poder) 2013-10-06 12:40:52 UTC

*** Bug 55364 has been marked as a duplicate of this bug. ***

Comment 2 Jesús Martínez Novo (Ciencia Al Poder) 2013-10-06 12:59:05 UTC


*** This bug has been marked as a duplicate of bug 35894 ***

Comment 3 Daniel Friesen 2013-10-06 13:11:56 UTC

(In reply to comment #0)
> As far as I could tell, There was no way to work around this or even see if
> the
> error would pop up in the code, so I had to hack CryptRand.php so that
> MCRYPT_RAND was used instead of MCRYPT_DEV_URANDOM.
> 
> Only then could installation complete.

This is not a good way to work around this issue, I've explained in detail here:
https://bugzilla.wikimedia.org/show_bug.cgi?id=55364#c4

Wikimedia Bugzilla is closed!

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