When generating the assembly code for <code>MLoadTypedArrayElementHole</code>, an incorrect AliasSet was used. In conjunction with another vulnerability this could have been used for an out of bounds memory read. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.
{ "availability": "No subscription required", "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" } ] }