Bug 1808536 (CVE-2020-7063)

Summary:	CVE-2020-7063 php: Files added to tar with Phar::buildFromIterator have all-access permissions
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	fedora, hhorak, jlyle, jorton, kyoshida, rcollet, security-response-team, 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:	2020-09-08 13:19:01 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:
Bug Depends On:	1808537, 1810261, 1810262, 1810263, 1810264, 1810265, 1857712
Bug Blocks:	1808539

Description Guilherme de Almeida Suckevicz 2020-02-28 18:29:23 UTC

In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when creating PHAR archive using PharData::buildFromIterator() function, the files are added with default permissions (0666, or all access) even if the original files on the filesystem were with more restrictive permissions. This may result in files having more lax permissions than intended when such archive is extracted.

Reference:
https://bugs.php.net/bug.php?id=79082

Comment 1 Guilherme de Almeida Suckevicz 2020-02-28 18:29:40 UTC

Created php tracking bugs for this issue:

Affects: fedora-all [bug 1808537]

Comment 4 Marco Benatto 2020-03-04 20:09:04 UTC

Upstream commit for this issue:
http://git.php.net/?p=php-src.git;a=commit;h=e5c95234d87fcb8f6b7569a96a89d1e1544749a6

Comment 9 errata-xmlrpc 2020-09-08 09:47:14 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:3662 https://access.redhat.com/errata/RHSA-2020:3662

Comment 10 Product Security DevOps Team 2020-09-08 13:19:01 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-7063

Comment 11 errata-xmlrpc 2020-12-01 12:03:19 UTC

This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS

Via RHSA-2020:5275 https://access.redhat.com/errata/RHSA-2020:5275