Bug 2030137 (CVE-2021-43528)

Summary:	CVE-2021-43528 Mozilla: JavaScript unexpectedly enabled for the composition area
Product:	[Other] Security Response	Reporter:	Doran Moppert <dmoppert>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	erack, jhorak, nobody, stransky, tpopela
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	thunderbird 91.4.0	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2029733

Description Doran Moppert 2021-12-08 04:28:27 UTC

Thunderbird unexpectedly enabled JavaScript in the composition area.
The JavaScript execution context was limited to this area and did not
receive chrome-level privileges, but could be used as a stepping stone
to further an attack with other vulnerabilities.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2021-54/#CVE-2021-43528

Comment 1 errata-xmlrpc 2021-12-09 12:36:41 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Extended Update Support

Via RHSA-2021:5047 https://access.redhat.com/errata/RHSA-2021:5047

Comment 2 errata-xmlrpc 2021-12-09 12:38:02 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:5045 https://access.redhat.com/errata/RHSA-2021:5045

Comment 3 errata-xmlrpc 2021-12-09 12:38:32 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Extended Update Support

Via RHSA-2021:5048 https://access.redhat.com/errata/RHSA-2021:5048

Comment 4 errata-xmlrpc 2021-12-09 12:53:29 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2021:5046 https://access.redhat.com/errata/RHSA-2021:5046

Comment 5 errata-xmlrpc 2021-12-09 14:44:03 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions

Via RHSA-2021:5055 https://access.redhat.com/errata/RHSA-2021:5055