Bug 1338896 (CVE-2015-8876)

Summary:	CVE-2015-8876 php: Zend/zend_exceptions.c does not validate certain Exception objects
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	abhgupta, dmcphers, fedora, hhorak, jialiu, jokerman, jorton, kseifried, lmeyer, mmccomas, rcollet, tiwillia, webstack-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	php 5.4.44, php 5.5.28, php 5.6.12	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-06-01 14:44:34 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:	1338927
Bug Blocks:	1338914

Description Andrej Nemec 2016-05-23 15:25:42 UTC

A vulnerability was found in php. Zend/zend_exceptions.c in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 does not validate certain Exception objects, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) or trigger unintended method execution via crafted serialized data.

Upstream bug:

https://bugs.php.net/bug.php?id=70121

Comment 1 Andrej Nemec 2016-05-23 16:35:57 UTC

Created php tracking bugs for this issue:

Affects: fedora-all [bug 1338927]

Comment 2 Tomas Hoger 2016-06-01 14:44:34 UTC

This issue is triggered by deserialization of untrusted input - which is something explicitly documented as insecure:

http://php.net/manual/en/function.unserialize.php

Comment 3 errata-xmlrpc 2016-11-15 11:52:33 UTC

This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 6
  Red Hat Software Collections for Red Hat Enterprise Linux 6.7 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 7.3 EUS

Via RHSA-2016:2750 https://rhn.redhat.com/errata/RHSA-2016-2750.html