Bug 1712629 (CVE-2019-9820)

Summary:	CVE-2019-9820 Mozilla: Use-after-free of ChromeEventHandler by DocShell
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:	cschalle, gecko-bugs-nobody, jhorak, security-response-team, stransky
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:56:05 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:	1709218, 1709219, 1709220, 1709221, 1709222, 1714081, 1714082, 1714083, 1714084, 1714085
Bug Blocks:	1709216, 1714079

Description Doran Moppert 2019-05-22 01:47:05 UTC

A use-after-free vulnerability can occur in the chrome event handler when it is freed while still in use. This results in a potentially exploitable crash. 



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2019-14/#CVE-2019-9820

Comment 1 Doran Moppert 2019-05-22 01:47:07 UTC

Acknowledgments:

Name: the Mozilla project
Upstream: Nils

Comment 2 errata-xmlrpc 2019-05-23 15:32:45 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:1265 https://access.redhat.com/errata/RHSA-2019:1265

Comment 3 errata-xmlrpc 2019-05-23 15:48:31 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2019:1267 https://access.redhat.com/errata/RHSA-2019:1267

Comment 4 errata-xmlrpc 2019-05-23 16:07:40 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:1269 https://access.redhat.com/errata/RHSA-2019:1269

Comment 5 Doran Moppert 2019-05-29 06:24:42 UTC

Statement:

In general, this flaw cannot be exploited through email in Thunderbird because scripting is disabled when reading mail, but it is potentially a risk in browser or browser-like contexts.

Comment 6 errata-xmlrpc 2019-06-03 21:14:55 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:1308 https://access.redhat.com/errata/RHSA-2019:1308

Comment 7 errata-xmlrpc 2019-06-03 21:15:09 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:1309 https://access.redhat.com/errata/RHSA-2019:1309

Comment 8 errata-xmlrpc 2019-06-03 21:15:26 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2019:1310 https://access.redhat.com/errata/RHSA-2019:1310