Bug 1688897 (CVE-2019-9637)

Summary:	CVE-2019-9637 php: File rename across filesystems may allow unwanted access during processing
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
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, jorton, rcollet, webstack-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	php 7.1.27, php 7.2.16, php 7.3.3	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-08-19 08:47:50 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:	1688898, 1690460, 1690461, 1690462, 1690463, 1690464
Bug Blocks:	1688949

Description Laura Pardo 2019-03-14 17:08:02 UTC

An issue was discovered in PHP before 7.1.27, 7.2.x before 7.2.16, and 7.3.x before 7.3.3. Due to the way rename() across filesystems is implemented, it is possible that file being renamed is briefly available with wrong permissions while the rename is ongoing, thus enabling unauthorized users to access the data.


Upstream Bug:
https://bugs.php.net/bug.php?id=77630

Upstream Patch:
http://git.php.net/?p=php-src.git;a=commit;h=e3133e4db70476fb7adfdedb738483e2255ce0e1

Comment 1 Laura Pardo 2019-03-14 17:08:17 UTC

Created php tracking bugs for this issue:

Affects: fedora-all [bug 1688898]

Comment 4 errata-xmlrpc 2019-08-19 08:42:52 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 7.4 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS

Via RHSA-2019:2519 https://access.redhat.com/errata/RHSA-2019:2519

Comment 5 Product Security DevOps Team 2019-08-19 08:47:50 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-2019-9637

Comment 6 errata-xmlrpc 2019-11-01 13:00:49 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 7.5 EUS
  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-2019:3299 https://access.redhat.com/errata/RHSA-2019:3299

Comment 7 errata-xmlrpc 2020-04-28 15:31:47 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:1624 https://access.redhat.com/errata/RHSA-2020:1624