A use-after-free vulnerability during video control operations when a "<track>" element holds a reference to an older window if that window has been replaced in the DOM. This results in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.
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{ "binaries": [ { "binary_version": "1:52.2.1+build1-0ubuntu0.14.04.1", "binary_name": "thunderbird" }, { "binary_version": "1:52.2.1+build1-0ubuntu0.14.04.1", "binary_name": "thunderbird-dev" }, { "binary_version": "1:52.2.1+build1-0ubuntu0.14.04.1", "binary_name": "thunderbird-globalmenu" }, { "binary_version": "1:52.2.1+build1-0ubuntu0.14.04.1", "binary_name": "thunderbird-gnome-support" }, { "binary_version": "1:52.2.1+build1-0ubuntu0.14.04.1", "binary_name": "thunderbird-mozsymbols" }, { "binary_version": "1:52.2.1+build1-0ubuntu0.14.04.1", "binary_name": "thunderbird-testsuite" }, { "binary_version": "1:52.2.1+build1-0ubuntu0.14.04.1", "binary_name": "xul-ext-calendar-timezones" }, { "binary_version": "1:52.2.1+build1-0ubuntu0.14.04.1", "binary_name": "xul-ext-gdata-provider" }, { "binary_version": "1:52.2.1+build1-0ubuntu0.14.04.1", "binary_name": "xul-ext-lightning" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_version": "54.0+build3-0ubuntu0.16.04.1", "binary_name": "firefox" }, { "binary_version": "54.0+build3-0ubuntu0.16.04.1", "binary_name": "firefox-dev" }, { "binary_version": "54.0+build3-0ubuntu0.16.04.1", "binary_name": "firefox-globalmenu" }, { "binary_version": "54.0+build3-0ubuntu0.16.04.1", "binary_name": "firefox-mozsymbols" }, { "binary_version": "54.0+build3-0ubuntu0.16.04.1", "binary_name": "firefox-testsuite" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_version": "1:52.2.1+build1-0ubuntu0.16.04.1", "binary_name": "thunderbird" }, { "binary_version": "1:52.2.1+build1-0ubuntu0.16.04.1", "binary_name": "thunderbird-dev" }, { "binary_version": "1:52.2.1+build1-0ubuntu0.16.04.1", "binary_name": "thunderbird-globalmenu" }, { "binary_version": "1:52.2.1+build1-0ubuntu0.16.04.1", "binary_name": "thunderbird-gnome-support" }, { "binary_version": "1:52.2.1+build1-0ubuntu0.16.04.1", "binary_name": "thunderbird-mozsymbols" }, { "binary_version": "1:52.2.1+build1-0ubuntu0.16.04.1", "binary_name": "thunderbird-testsuite" }, { "binary_version": "1:52.2.1+build1-0ubuntu0.16.04.1", "binary_name": "xul-ext-calendar-timezones" }, { "binary_version": "1:52.2.1+build1-0ubuntu0.16.04.1", "binary_name": "xul-ext-gdata-provider" }, { "binary_version": "1:52.2.1+build1-0ubuntu0.16.04.1", "binary_name": "xul-ext-lightning" } ], "availability": "No subscription required" }