When exiting fullscreen mode, an iframe could have confused the browser about the current state of fullscreen, resulting in potential user confusion or spoofing attacks. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.
{ "availability": "No subscription required", "binaries": [ { "binary_name": "firefox", "binary_version": "101.0.1+build1-0ubuntu0.18.04.1" }, { "binary_name": "firefox-dev", "binary_version": "101.0.1+build1-0ubuntu0.18.04.1" }, { "binary_name": "firefox-geckodriver", "binary_version": "101.0.1+build1-0ubuntu0.18.04.1" }, { "binary_name": "firefox-mozsymbols", "binary_version": "101.0.1+build1-0ubuntu0.18.04.1" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "thunderbird", "binary_version": "1:91.11.0+build2-0ubuntu0.18.04.1" }, { "binary_name": "thunderbird-dev", "binary_version": "1:91.11.0+build2-0ubuntu0.18.04.1" }, { "binary_name": "thunderbird-gnome-support", "binary_version": "1:91.11.0+build2-0ubuntu0.18.04.1" }, { "binary_name": "thunderbird-mozsymbols", "binary_version": "1:91.11.0+build2-0ubuntu0.18.04.1" }, { "binary_name": "xul-ext-calendar-timezones", "binary_version": "1:91.11.0+build2-0ubuntu0.18.04.1" }, { "binary_name": "xul-ext-gdata-provider", "binary_version": "1:91.11.0+build2-0ubuntu0.18.04.1" }, { "binary_name": "xul-ext-lightning", "binary_version": "1:91.11.0+build2-0ubuntu0.18.04.1" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "firefox", "binary_version": "101.0.1+build1-0ubuntu0.20.04.1" }, { "binary_name": "firefox-dev", "binary_version": "101.0.1+build1-0ubuntu0.20.04.1" }, { "binary_name": "firefox-geckodriver", "binary_version": "101.0.1+build1-0ubuntu0.20.04.1" }, { "binary_name": "firefox-mozsymbols", "binary_version": "101.0.1+build1-0ubuntu0.20.04.1" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "thunderbird", "binary_version": "1:91.11.0+build2-0ubuntu0.20.04.1" }, { "binary_name": "thunderbird-dev", "binary_version": "1:91.11.0+build2-0ubuntu0.20.04.1" }, { "binary_name": "thunderbird-gnome-support", "binary_version": "1:91.11.0+build2-0ubuntu0.20.04.1" }, { "binary_name": "thunderbird-mozsymbols", "binary_version": "1:91.11.0+build2-0ubuntu0.20.04.1" }, { "binary_name": "xul-ext-calendar-timezones", "binary_version": "1:91.11.0+build2-0ubuntu0.20.04.1" }, { "binary_name": "xul-ext-gdata-provider", "binary_version": "1:91.11.0+build2-0ubuntu0.20.04.1" }, { "binary_name": "xul-ext-lightning", "binary_version": "1:91.11.0+build2-0ubuntu0.20.04.1" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "thunderbird", "binary_version": "1:91.11.0+build2-0ubuntu0.22.04.1" }, { "binary_name": "thunderbird-dev", "binary_version": "1:91.11.0+build2-0ubuntu0.22.04.1" }, { "binary_name": "thunderbird-gnome-support", "binary_version": "1:91.11.0+build2-0ubuntu0.22.04.1" }, { "binary_name": "thunderbird-mozsymbols", "binary_version": "1:91.11.0+build2-0ubuntu0.22.04.1" }, { "binary_name": "xul-ext-calendar-timezones", "binary_version": "1:91.11.0+build2-0ubuntu0.22.04.1" }, { "binary_name": "xul-ext-gdata-provider", "binary_version": "1:91.11.0+build2-0ubuntu0.22.04.1" }, { "binary_name": "xul-ext-lightning", "binary_version": "1:91.11.0+build2-0ubuntu0.22.04.1" } ] }