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.

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

Configuration 1

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

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Published : 2021-12-08 10:15

Updated : 2022-12-09 03:31

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NVD link : CVE-2021-38506

Mitre link : CVE-2021-38506

No products.

CWE-1021

Improper Restriction of Rendered UI Layers or Frames