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.
{ "binaries": [ { "binary_name": "firefox", "binary_version": "94.0+build3-0ubuntu0.18.04.1" }, { "binary_name": "firefox-dev", "binary_version": "94.0+build3-0ubuntu0.18.04.1" }, { "binary_name": "firefox-geckodriver", "binary_version": "94.0+build3-0ubuntu0.18.04.1" }, { "binary_name": "firefox-mozsymbols", "binary_version": "94.0+build3-0ubuntu0.18.04.1" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_name": "thunderbird", "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1" }, { "binary_name": "thunderbird-dev", "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1" }, { "binary_name": "thunderbird-gnome-support", "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1" }, { "binary_name": "thunderbird-mozsymbols", "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1" }, { "binary_name": "xul-ext-calendar-timezones", "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1" }, { "binary_name": "xul-ext-gdata-provider", "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1" }, { "binary_name": "xul-ext-lightning", "binary_version": "1:91.5.0+build1-0ubuntu0.18.04.1" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_name": "firefox", "binary_version": "94.0+build3-0ubuntu0.20.04.1" }, { "binary_name": "firefox-dev", "binary_version": "94.0+build3-0ubuntu0.20.04.1" }, { "binary_name": "firefox-geckodriver", "binary_version": "94.0+build3-0ubuntu0.20.04.1" }, { "binary_name": "firefox-mozsymbols", "binary_version": "94.0+build3-0ubuntu0.20.04.1" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_name": "thunderbird", "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1" }, { "binary_name": "thunderbird-dev", "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1" }, { "binary_name": "thunderbird-gnome-support", "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1" }, { "binary_name": "thunderbird-mozsymbols", "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1" }, { "binary_name": "xul-ext-calendar-timezones", "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1" }, { "binary_name": "xul-ext-gdata-provider", "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1" }, { "binary_name": "xul-ext-lightning", "binary_version": "1:91.5.0+build1-0ubuntu0.20.04.1" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_name": "firefox", "binary_version": "94.0+build3-0ubuntu1" }, { "binary_name": "firefox-dev", "binary_version": "94.0+build3-0ubuntu1" }, { "binary_name": "firefox-geckodriver", "binary_version": "94.0+build3-0ubuntu1" }, { "binary_name": "firefox-mozsymbols", "binary_version": "94.0+build3-0ubuntu1" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_name": "thunderbird", "binary_version": "1:91.3.1+build1-0ubuntu1" }, { "binary_name": "thunderbird-dev", "binary_version": "1:91.3.1+build1-0ubuntu1" }, { "binary_name": "thunderbird-gnome-support", "binary_version": "1:91.3.1+build1-0ubuntu1" }, { "binary_name": "thunderbird-mozsymbols", "binary_version": "1:91.3.1+build1-0ubuntu1" }, { "binary_name": "xul-ext-calendar-timezones", "binary_version": "1:91.3.1+build1-0ubuntu1" }, { "binary_name": "xul-ext-gdata-provider", "binary_version": "1:91.3.1+build1-0ubuntu1" }, { "binary_name": "xul-ext-lightning", "binary_version": "1:91.3.1+build1-0ubuntu1" } ], "availability": "No subscription required" }