Bug 1829343 (CVE-2020-6809)

Summary:	CVE-2020-6809 Mozilla: Web Extensions with the all-urls permission could access local files
Product:	[Other] Security Response	Reporter:	msiddiqu
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dmoppert, huzaifas, jhorak, security-response-team, stransky
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	firefox 74	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-04-29 16:32:04 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:
Bug Blocks:	1829324

Description msiddiqu 2020-04-29 12:18:10 UTC

When a Web Extension had the all-urls permission and made a fetch request with a mode set to 'same-origin', it was possible for the Web Extension to read local files.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6809

Comment 1 msiddiqu 2020-04-29 12:18:15 UTC

Acknowledgments:

Name: the Mozilla project
Upstream: Jan Biniok

Comment 2 Product Security DevOps Team 2020-04-29 16:32:04 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-2020-6809