By using a link with <code>rel="localization"</code> a use-after-free could have been triggered by destroying an object during JavaScript execution and then referencing the object through a freed pointer, leading to a potential exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.
{ "binaries": [ { "binary_name": "firefox", "binary_version": "99.0+build2-0ubuntu0.18.04.2" }, { "binary_name": "firefox-dev", "binary_version": "99.0+build2-0ubuntu0.18.04.2" }, { "binary_name": "firefox-geckodriver", "binary_version": "99.0+build2-0ubuntu0.18.04.2" }, { "binary_name": "firefox-mozsymbols", "binary_version": "99.0+build2-0ubuntu0.18.04.2" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_name": "thunderbird", "binary_version": "1:91.8.1+build1-0ubuntu0.18.04.1" }, { "binary_name": "thunderbird-dev", "binary_version": "1:91.8.1+build1-0ubuntu0.18.04.1" }, { "binary_name": "thunderbird-gnome-support", "binary_version": "1:91.8.1+build1-0ubuntu0.18.04.1" }, { "binary_name": "thunderbird-mozsymbols", "binary_version": "1:91.8.1+build1-0ubuntu0.18.04.1" }, { "binary_name": "xul-ext-calendar-timezones", "binary_version": "1:91.8.1+build1-0ubuntu0.18.04.1" }, { "binary_name": "xul-ext-gdata-provider", "binary_version": "1:91.8.1+build1-0ubuntu0.18.04.1" }, { "binary_name": "xul-ext-lightning", "binary_version": "1:91.8.1+build1-0ubuntu0.18.04.1" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_name": "firefox", "binary_version": "99.0+build2-0ubuntu0.20.04.2" }, { "binary_name": "firefox-dev", "binary_version": "99.0+build2-0ubuntu0.20.04.2" }, { "binary_name": "firefox-geckodriver", "binary_version": "99.0+build2-0ubuntu0.20.04.2" }, { "binary_name": "firefox-mozsymbols", "binary_version": "99.0+build2-0ubuntu0.20.04.2" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_name": "thunderbird", "binary_version": "1:91.8.1+build1-0ubuntu0.20.04.1" }, { "binary_name": "thunderbird-dev", "binary_version": "1:91.8.1+build1-0ubuntu0.20.04.1" }, { "binary_name": "thunderbird-gnome-support", "binary_version": "1:91.8.1+build1-0ubuntu0.20.04.1" }, { "binary_name": "thunderbird-mozsymbols", "binary_version": "1:91.8.1+build1-0ubuntu0.20.04.1" }, { "binary_name": "xul-ext-calendar-timezones", "binary_version": "1:91.8.1+build1-0ubuntu0.20.04.1" }, { "binary_name": "xul-ext-gdata-provider", "binary_version": "1:91.8.1+build1-0ubuntu0.20.04.1" }, { "binary_name": "xul-ext-lightning", "binary_version": "1:91.8.1+build1-0ubuntu0.20.04.1" } ], "availability": "No subscription required" }