Bug 1232823 (CVE-2015-3412)

Summary:	CVE-2015-3412 php: missing null byte checks for paths in various PHP extensions
Product:	[Other] Security Response	Reporter:	Tomas Hoger <thoger>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	fedora, jorton, mmaslano, rcollet, webstack-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	php 5.4.40, php 5.5.24, php 5.6.8	Doc Type:	Bug Fix
Doc Text:	It was found that certain PHP functions did not properly handle file names containing a NULL character. A remote attacker could possibly use this flaw to make a PHP script access unexpected files and bypass intended file system access restrictions.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-07-09 21:34:36 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:	1213456, 1228052, 1228053, 1228070, 1228071, 1228072, 1228073, 1228074, 1228075, 1228076, 1228077
Bug Blocks:	1213462

Description Tomas Hoger 2015-06-17 14:57:39 UTC

PHP versions 5.4.40, 5.5.24, and 5.6.8 provide fixes for multiple PHP extensions which did not check for NULL byte in a file name or path argument for certain functions, which could lead to bypass of intended access restrictions.

Upstream fix:
http://git.php.net/?p=php-src.git;a=commitdiff;h=52b93f0cfd3cba7ff98cc5198df6ca4f23865f80

The above commit also corrects problems from the following upstream bug report:

https://bugs.php.net/bug.php?id=69353

See bug 1213407 comment 5 for more details.  It was decided to assign separate CVE ids for the issue described in the upstream bug report (CVE-2015-3411) and additional issues included in the upstream fix (CVE-2015-3412):

http://seclists.org/oss-sec/2015/q2/727

Comment 1 Tomas Hoger 2015-06-17 15:03:27 UTC

The PHP packages as shipped as part of the php54 collection in Red Hat Software Collections were updated to fixed upstream version 5.4.40 via RHSA-2015:1066 released as part of Red Hat Software Collections 2.0.


This issue has been addressed in the php54-php packages in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 6
  Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS

Via RHSA-2015:1066 https://rhn.redhat.com/errata/RHSA-2015-1066.html

Comment 2 errata-xmlrpc 2015-06-23 08:14:06 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2015:1135 https://rhn.redhat.com/errata/RHSA-2015-1135.html

Comment 3 errata-xmlrpc 2015-06-25 08:33:11 UTC

This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6
  Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS

Via RHSA-2015:1186 https://rhn.redhat.com/errata/RHSA-2015-1186.html

Comment 4 errata-xmlrpc 2015-06-25 08:44:30 UTC

This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6
  Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS

Via RHSA-2015:1187 https://rhn.redhat.com/errata/RHSA-2015-1187.html

Comment 5 errata-xmlrpc 2015-07-09 17:08:27 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2015:1218 https://rhn.redhat.com/errata/RHSA-2015-1218.html