Due to unexpected data type conversions, a use-after-free could have occurred when interacting with the font cache. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox < 88.
[ { "events": [ { "introduced": "0" }, { "fixed": "88.0" } ] } ]
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-23997.json"