CVE-2022-22747

Name of the Vulnerable Software and Affected Versions Firefox ESR versions prior to 91.5 Firefox versions prior to 96 Thunderbird versions prior to 91.5

Description The issue is related to the incorrect handling of an empty pkcs7 sequence in certificate data. This could lead to a crash when handling an untrusted certificate, potentially allowing a remote attacker to cause a denial-of-service (DoS) condition by sending a specially crafted certificate. It is believed that this crash is not exploitable for more severe attacks.

Recommendations For Firefox ESR versions prior to 91.5, update to version 91.5 or later. For Firefox versions prior to 96, update to version 96 or later. For Thunderbird versions prior to 91.5, update to version 91.5 or later.