Bug 1305499

Summary:	php: Loading zend_extension twice can lead to segfault in zend_interned_strings_dtor
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	abhgupta, dmcphers, fedora, jialiu, jokerman, jorton, kseifried, lmeyer, mmaslano, mmccomas, rcollet, tiwillia, webstack-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	php 5.6.18	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-02-11 07:54:42 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:
Bug Blocks:	1305564

Description Adam Mariš 2016-02-08 12:41:33 UTC

It was reported that no check is performed when loading zend_extension twice, which can cause segmentation fault in zend_interned_strings_dtor.

Upstream bug:

https://bugs.php.net/bug.php?id=71089

Upstream patch:

https://git.php.net/?p=php-src.git;a=commit;h=410eacc1a9b50ec3cb6c5fc0ff252516d0c0a4f1

Comment 1 Remi Collet 2016-02-08 13:37:37 UTC

Sorry, but I don't think this is a security issue, as it only occurs in case of a configuration mistake.

Comment 2 Adam Mariš 2016-02-08 15:13:53 UTC

Created php tracking bugs for this issue:

Affects: fedora-all [bug 1305565]

Comment 3 Tomas Hoger 2016-02-11 07:54:42 UTC

(In reply to Remi Collet from comment #1)
> Sorry, but I don't think this is a security issue, as it only occurs in case
> of a configuration mistake.

Agree!