Bug 2030137 (CVE-2021-43528) - CVE-2021-43528 Mozilla: JavaScript unexpectedly enabled for the composition area
Summary: CVE-2021-43528 Mozilla: JavaScript unexpectedly enabled for the composition area
Keywords:
Status: NEW
Alias: CVE-2021-43528
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 2029733
TreeView+ depends on / blocked
 
Reported: 2021-12-08 04:28 UTC by Doran Moppert
Modified: 2025-09-01 08:27 UTC (History)
4 users (show)

Fixed In Version: thunderbird 91.4.0
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:5045 0 None None None 2021-12-09 12:38:03 UTC
Red Hat Product Errata RHSA-2021:5046 0 None None None 2021-12-09 12:53:31 UTC
Red Hat Product Errata RHSA-2021:5047 0 None None None 2021-12-09 12:36:42 UTC
Red Hat Product Errata RHSA-2021:5048 0 None None None 2021-12-09 12:38:33 UTC
Red Hat Product Errata RHSA-2021:5055 0 None None None 2021-12-09 14:44:04 UTC

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
Note You need to log in before you can comment on or make changes to this bug.