Bug 670811 (CVE-2010-4700)

Summary:	CVE-2010-4700 php: mysqli mysqli_fetch_assoc does not escape its output when magic_quotes are enabled
Product:	[Other] Security Response	Reporter:	Tomas Hoger <thoger>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	fedora, jorton, rpm
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-01-21 14:28:58 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Tomas Hoger 2011-01-19 13:11:32 UTC

Common Vulnerabilities and Exposures assigned an identifier CVE-2010-4700 to the following issue:

The set_magic_quotes_runtime function in PHP 5.3.2 and 5.3.3, when the
MySQLi extension is used, does not properly interact with use of the
mysqli_fetch_assoc function, which might make it easier for
context-dependent attackers to conduct SQL injection attacks via
crafted input that had been properly handled in earlier PHP versions.

References:
http://bugs.php.net/52221
http://www.php.net/ChangeLog-5.php#5.3.4

Upstream commit:
http://svn.php.net/viewvc/?view=revision&revision=302776

Comment 1 Tomas Hoger 2011-01-19 13:21:49 UTC

Following commits seem related too:
http://svn.php.net/viewvc?view=revision&revision=302804
http://svn.php.net/viewvc?view=revision&revision=303366

Comment 2 Tomas Hoger 2011-01-20 20:38:10 UTC

I can't reproduce this issue on RHEL PHP 5.3.2 and 5.3.3.  The output is escaped as expected, identical to the file_get_contents("test.txt") output.

Looking at what code is touched by the patches referenced above, it's #ifdef MYSQLI_USE_MYSQLND code.  Both RHEL and Fedora PHP packages still use libmysql, rather than new mysqlnd driver.  Our builds should not be affected by this issue.

Comment 3 Tomas Hoger 2011-01-20 20:47:34 UTC

Fedora RFE for switch to mysqlnd - bug #510951.

Comment 5 Joe Orton 2011-01-21 14:16:23 UTC

Tomas is correct that this only affects the build with mysqlnd enabled, which we don't ship.

Comment 6 Tomas Hoger 2011-01-21 14:28:58 UTC

Statement:

Not vulnerable. This issue did not affect the versions of php as shipped with Red Hat Enterprise Linux 4, 5, or 6.