Bug 1611613 (CVE-2017-18869)

Summary:	CVE-2017-18869 nodejs-chownr: TOCTOU vulnerability in `chownr` function in chownr.js
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	cbyrne, cmacedo, dffrench, drusso, hhorak, jmadigan, jorton, jshepherd, lgriffin, ngough, nodejs-sig, pwright, tchollingsworth, thrcka, trepel, zsvetlik
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	nodejs-chownr 1.1.0	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-06-19 05:20:29 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:	1612067, 1612068
Bug Blocks:	1611614

Description Pedro Sampaio 2018-08-02 13:15:26 UTC

Affected versions of chownr are vulnerable to Time of Check Time of Use (TOCTOU). It does not dereference symbolic links and changes the owner of the link.

Upstream bug:

https://github.com/isaacs/chownr/issues/14

Upstream patch:

https://github.com/simevo/chownr/commit/0307bb7520c856f3e586815959141103ed7590c4

References:

https://snyk.io/vuln/npm:chownr:20180731
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=863985#10

Comment 2 errata-xmlrpc 2020-06-19 03:44:16 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-2020:2625 https://access.redhat.com/errata/RHSA-2020:2625

Comment 3 Product Security DevOps Team 2020-06-19 05:20:29 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-2017-18869