Bug 1456749 (CVE-2017-9119)

Summary:	CVE-2017-9119 php: Segfault in i_zval_ptr_dtor()
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	abhgupta, fedora, hhorak, jorton, kseifried, rcollet, sardella, tiwillia, webstack-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-07-03 07:35:32 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:	1456751
Bug Blocks:	1456755

Description Adam Mariš 2017-05-30 10:01:08 UTC

The i_zval_ptr_dtor function in Zend/zend_variables.h in PHP 7.1.5 allows attackers to cause a denial of service (memory consumption and application crash) or possibly have unspecified other impact by triggering crafted operations on array data structures.

Upstream bug:

https://bugs.php.net/bug.php?id=74593

Comment 1 Adam Mariš 2017-05-30 10:01:36 UTC

Created php tracking bugs for this issue:

Affects: fedora-all [bug 1456751]

Comment 2 Huzaifa S. Sidhpurwala 2017-07-03 07:35:32 UTC

Analysis:

This seems to be more like a memory exhaustion which is caused by malicious PHP script. I dont see this as being triggerable by a malicious PHP application user.