Through a series of navigations, Firefox could have entered fullscreen mode without notification or warning to the user. This could lead to spoofing attacks on the browser UI including phishing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-2863-1 firefox-esr security update
Debian DLA Debian DLA DLA-2874-1 thunderbird security update
Debian DSA Debian DSA DSA-5026-1 firefox-esr security update
Debian DSA Debian DSA DSA-5034-1 thunderbird security update
EUVD EUVD EUVD-2021-24958 Through a series of navigations, Firefox could have entered fullscreen mode without notification or warning to the user. This could lead to spoofing attacks on the browser UI including phishing. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
Ubuntu USN Ubuntu USN USN-5131-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-5152-1 Thunderbird vulnerabilities
Ubuntu USN Ubuntu USN USN-5248-1 Thunderbird vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-08-04T01:44:22.919Z

Reserved: 2021-08-10T00:00:00

Link: CVE-2021-38506

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-12-08T22:15:08.897

Modified: 2024-11-21T06:17:16.277

Link: CVE-2021-38506

cve-icon Redhat

Severity : Important

Publid Date: 2021-11-02T00:00:00Z

Links: CVE-2021-38506 - Bugzilla

cve-icon OpenCVE Enrichment

No data.