Bug 1256290 (CVE-2015-6831)

Summary:	CVE-2015-6831 php: Use After Free Vulnerability in unserialize()
Product:	[Other] Security Response	Reporter:	Vasyl Kaigorodov <vkaigoro>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bleanhar, ccoleman, dmasirka, dmcphers, erich, fedora, jdetiber, jialiu, jkeck, jokerman, jorton, jrusnack, kseifried, lmeyer, mmaslano, mmccomas, rcollet, sardella, webstack-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	PHP 5.6.12, PHP 5.5.28, PHP 5.4.44	Doc Type:	Bug Fix
Doc Text:	A flaw was discovered in the way PHP performed object unserialization. Specially crafted input processed by the unserialize() function could cause a PHP application to crash or, possibly, execute arbitrary code.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-10-27 10:01:01 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:	1305854, 1305855
Bug Blocks:	1252058, 1306180

Description Vasyl Kaigorodov 2015-08-24 09:59:20 UTC

Use-after-free vulnerabilities that can potentially lead to remote code execution were reported in PHP:
https://bugs.php.net/bug.php?id=70166
https://bugs.php.net/bug.php?id=70168
https://bugs.php.net/bug.php?id=70169

CVE assignment: http://seclists.org/oss-sec/2015/q3/523

Upstream fixes:

(Bug #70166): http://git.php.net/?p=php-src.git;a=commit;h=7381b6accc5559b2de039af3a22f6ec1003b03b3
(Bug #70168): http://git.php.net/?p=php-src.git;a=commit;h=c2e197e4efc663ca55f393bf0e799848842286f3
(Bug #70169): http://git.php.net/?p=php-src.git;a=commit;h=863bf294feb9ad425eadb94f288bc7f18673089d

Comment 1 Adam Mariš 2015-09-09 08:59:31 UTC

*** Bug 1256292 has been marked as a duplicate of this bug. ***

Comment 2 Adam Mariš 2015-09-09 08:59:41 UTC

*** Bug 1256320 has been marked as a duplicate of this bug. ***

Comment 5 errata-xmlrpc 2016-03-15 20:57:00 UTC

This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6

Via RHSA-2016:0457 https://rhn.redhat.com/errata/RHSA-2016-0457.html