CVEs-PoC/2021/CVE-2021-43537.md

CVE-2021-43537

Description

An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

POC

Reference

• https://bugzilla.mozilla.org/show_bug.cgi?id=1738237
• https://www.mozilla.org/security/advisories/mfsa2021-54/

Github

No PoCs found on GitHub currently.