CVEs-PoC/2021/CVE-2021-23997.md

CVE-2021-23997

Description

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.

POC

Reference

• https://bugzilla.mozilla.org/show_bug.cgi?id=1701942
• https://bugzilla.mozilla.org/show_bug.cgi?id=1701942

Github

No PoCs found on GitHub currently.