Bug 670792 (CVE-2010-4697)

Summary:	CVE-2010-4697 php: Zend use-after-free certain methods are called on objects accessed by a reference
Product:	[Other] Security Response	Reporter:	Tomas Hoger <thoger>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	jorton
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:	2011-01-19 17:40:01 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:

Description Tomas Hoger 2011-01-19 12:16:05 UTC

Common Vulnerabilities and Exposures assigned an identifier CVE-2010-4697 to the following issue:

Use-after-free vulnerability in the Zend engine in PHP before 5.2.15
and 5.3.x before 5.3.4 might allow context-dependent attackers to
cause a denial of service (heap memory corruption) or have unspecified
other impact via vectors related to use of __set, __get, __isset, and
__unset methods on objects accessed by a reference.

References:
http://bugs.php.net/52879
http://www.php.net/ChangeLog-5.php#5.3.4
http://www.php.net/ChangeLog-5.php#5.2.15

Upstream commit:
http://svn.php.net/viewvc/?view=revision&revision=303913

Comment 1 Tomas Hoger 2011-01-19 17:40:01 UTC

This is under the full control of the script author, hence may possibly allow safe_mode / open_basedir restrictions.

*** This bug has been marked as a duplicate of bug 169857 ***

Comment 2 Tomas Hoger 2011-01-20 11:17:52 UTC

Statement:

We do not consider safe_mode / open_basedir restriction bypass issues to be security sensitive.  For more details see http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=169857#c1 and http://www.php.net/security-note.php