Bug 782943 (CVE-2011-4153)

Summary:	CVE-2011-4153 php: zend_strndup() NULL pointer dereference may cause DoS
Product:	[Other] Security Response	Reporter:	Vincent Danen <vdanen>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	fedora, jorton, robertbogdon, rpm
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-06-27 17:16:35 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	819855, 819856, 830727, 830728, 830729, 830730
Bug Blocks:	782956, 835958, 835959, 835960

Description Vincent Danen 2012-01-18 22:21:29 UTC

Common Vulnerabilities and Exposures assigned an identifier CVE-2011-4153 to
the following vulnerability:

Name: CVE-2011-4153
URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4153
Assigned: 20111021
Reference: http://archives.neohapsis.com/archives/bugtraq/2012-01/0092.html
Reference: http://www.exploit-db.com/exploits/18370/
Reference: http://cxsecurity.com/research/103

PHP 5.3.8 does not always check the return value of the zend_strndup
function, which might allow remote attackers to cause a denial of
service (NULL pointer dereference and application crash) via crafted
input to an application that performs strndup operations on untrusted
string data, as demonstrated by the define function in
zend_builtin_functions.c, and unspecified functions in
ext/soap/php_sdl.c, ext/standard/syslog.c, ext/standard/browscap.c,
ext/oci8/oci8.c, ext/com_dotnet/com_typeinfo.c, and
main/php_open_temporary_file.c.

Comment 1 Vincent Danen 2012-01-18 22:37:55 UTC

I don't see in the 5.3.9 changelog that this has been corrected, so Fedora may indeed be affected by this.

Comment 2 Vincent Danen 2012-01-18 22:43:36 UTC

The upstream bug is here:

https://bugs.php.net/bug.php?id=55748

And the upstream commit for the 5.3 branch is here:

http://svn.php.net/viewvc/?view=revision&amp;revision=319457

Comment 3 Vincent Danen 2012-01-18 22:50:00 UTC

Also this commit is relevant, the above is just for oci8.c.

http://svn.php.net/viewvc?view=revision&revision=319442

Looks like the fix from r319457 made it into 5.3.x, but the fix from r319442 did not, or did not fully, looking at:

http://svn.php.net/viewvc/php/php-src/tags/php_5_3_9/ext/com_dotnet/com_typeinfo.c?view=log

Comment 4 Remi Collet 2012-01-19 05:22:39 UTC

oci8 (Oracle) and com_dotnet (Windows) extensions are not available in fedora

Comment 8 errata-xmlrpc 2012-06-27 15:52:14 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2012:1047 https://rhn.redhat.com/errata/RHSA-2012-1047.html

Comment 9 errata-xmlrpc 2012-06-27 15:52:48 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2012:1046 https://rhn.redhat.com/errata/RHSA-2012-1046.html

Comment 10 errata-xmlrpc 2012-06-27 15:54:04 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2012:1045 https://rhn.redhat.com/errata/RHSA-2012-1045.html