vulnerability

Gentoo Linux: CVE-2021-38506: Mozilla Firefox: Multiple vulnerabilities

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Dec 8, 2021
Added
Feb 22, 2022
Modified
Aug 13, 2025

Description

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.

Solutions

gentoo-linux-upgrade-mail-client-thunderbirdgentoo-linux-upgrade-mail-client-thunderbird-bingentoo-linux-upgrade-www-client-firefoxgentoo-linux-upgrade-www-client-firefox-bin
Title
NEW

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