An attacker could have exploited a timing attack by sending a large number of allowCredential entries and detecting the difference between invalid key handles and cross-origin key handles. This could have led to cross-origin account linking in violation of WebAuthn goals. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.
{ "binaries": [ { "binary_version": "101.0.1+build1-0ubuntu0.18.04.1", "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" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_version": "1:91.11.0+build2-0ubuntu0.18.04.1", "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" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_version": "101.0.1+build1-0ubuntu0.20.04.1", "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" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_version": "1:91.11.0+build2-0ubuntu0.20.04.1", "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" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_version": "1:91.11.0+build2-0ubuntu0.22.04.1", "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" } ], "availability": "No subscription required" }