Firefox's HTML parser did not correctly interpret HTML comment tags, resulting in an incongruity with other browsers. This could have been used to escape HTML comments on pages that put user-controlled data in them. This vulnerability affects Firefox < 101.
{ "availability": "No subscription required", "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": "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" } ] }