CVE-2022-28281

Name of the Vulnerable Software and Affected Versions Thunderbird versions prior to 91.8 Firefox versions prior to 99 Firefox ESR versions prior to 91.8

Description The issue is related to a boundary error when handling an unexpected number of WebAuthN Extensions in a Register command. This can lead to an out of bounds write, resulting in memory corruption and a potentially exploitable crash. An attacker could exploit this by creating a specially crafted web page, tricking the victim into opening it, and then performing an out of bounds write to execute arbitrary code in the system.

Recommendations For Thunderbird versions prior to 91.8, update to version 91.8 or later. For Firefox versions prior to 99, update to version 99 or later. For Firefox ESR versions prior to 91.8, update to version 91.8 or later.