CVE-2018-18509 log

Severity High
Remote Yes
Type Insufficient validation
A flaw during verification of certain S/MIME signatures causes emails to be shown in Thunderbird before 60.5.1 as having a valid digital signature, even if the shown message contents aren't covered by the signature. The flaw allows an attacker to reuse a valid S/MIME signature to craft an email message with arbitrary content.
Group Package Affected Fixed Severity Status Ticket
AVG-908 thunderbird 60.5.0-1 60.5.1-1 Critical Fixed
Date Advisory Group Package Severity Type
20 Feb 2019 ASA-201902-23 AVG-908 thunderbird Critical multiple issues