Bug 1748660 (CVE-2019-9812)

Summary:	CVE-2019-9812 Mozilla: Sandbox escape through Firefox Sync
Product:	[Other] Security Response	Reporter:	Doran Moppert <dmoppert>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	jhorak, security-response-team, stransky
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	firefox 60.9, firefox 68.1	Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-09-05 01:07:31 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:	1745828, 1745829, 1745830, 1745831, 1745832, 1748670
Bug Blocks:	1745825

Description Doran Moppert 2019-09-04 00:48:10 UTC

Given a compromised sandboxed content process due to a separate vulnerability, it is possible to escape that sandbox by loading `accounts.firefox.com` in that process and forcing a log-in to a malicious Firefox Sync account. Preference settings that disable the sandbox are then synchronized to the local machine and the compromised browser would restart without the sandbox if a crash is triggered.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2019-27/#CVE-2019-9812

Comment 1 Doran Moppert 2019-09-04 00:48:13 UTC

Acknowledgments:

Name: the Mozilla project
Upstream: Niklas Baumstark via TrendMicro's Zero Day Initiative

Comment 3 errata-xmlrpc 2019-09-04 20:12:15 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:2663 https://access.redhat.com/errata/RHSA-2019:2663

Comment 4 Product Security DevOps Team 2019-09-05 01:07:31 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-2019-9812

Comment 5 errata-xmlrpc 2019-09-10 09:13:00 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2019:2694 https://access.redhat.com/errata/RHSA-2019:2694

Comment 6 errata-xmlrpc 2019-09-11 09:57:02 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2729 https://access.redhat.com/errata/RHSA-2019:2729