Bug 1305540

Summary:	php: Null pointer dereference in phar_tar_setupmetadata()
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dmcphers, fedora, hhorak, jialiu, jokerman, jorton, lmeyer, mmaslano, mmccomas, rcollet, webstack-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	php 5.6.18, php 5.5.32	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-09-07 12:21:53 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:	1305565
Bug Blocks:	1305564

Description Adam Mariš 2016-02-08 14:35:27 UTC

A NULL pointere dereference vulnerability in tar's metadata parsing was reported.

Upstream bug:

https://bugs.php.net/bug.php?id=71391

Upstream patch:

https://git.php.net/?p=php-src.git;a=commit;h=1c1b8b69982375700d4b011eb89ea48b66dbd5aa

Comment 1 Adam Mariš 2016-02-08 15:13:08 UTC

Created php tracking bugs for this issue:

Affects: fedora-all [bug 1305565]

Comment 2 Tomas Hoger 2017-09-07 12:20:56 UTC

This bug is not triggered by a malformed phar archive, but requires a PHP script to perform specific operation on a tar-format phar archive - call to a Phar::delMetadata function.  That's rather unlikely, and does not seem to be worth calling security.