CVE-2021-38506

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.
References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1730750 Issue Tracking Permissions Required Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202202-03 Third Party Advisory
https://security.gentoo.org/glsa/202208-14 Third Party Advisory
https://www.debian.org/security/2021/dsa-5026 Third Party Advisory
https://www.debian.org/security/2022/dsa-5034 Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2021-48/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-49/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-50/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1730750 Issue Tracking Permissions Required Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202202-03 Third Party Advisory
https://security.gentoo.org/glsa/202208-14 Third Party Advisory
https://www.debian.org/security/2021/dsa-5026 Third Party Advisory
https://www.debian.org/security/2022/dsa-5034 Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2021-48/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-49/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-50/ Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-12-08 22:15

Updated : 2024-11-21 06:17


NVD link : CVE-2021-38506

Mitre link : CVE-2021-38506

CVE.ORG link : CVE-2021-38506


JSON object : View

Products Affected

debian

  • debian_linux

mozilla

  • firefox_esr
  • firefox
  • thunderbird
CWE
CWE-1021

Improper Restriction of Rendered UI Layers or Frames