Spoofing attack in Mozilla Thunderbird - CVE-2018-18509
Published: February 14, 2019
Vulnerability identifier: #VU17703
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-18509
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Thunderbird
Mozilla Thunderbird
Detailed vulnerability description
The vulnerability allows a remote attacker to conduct spoofing attack.
The vulnerability exists due to a flaw during verification of certain S/MIME signatures causes emails can be shown in Thunderbird as having a valid digital signature, even if the shown message contents aren't covered by the signature. A remote attacker can reuse a valid S/MIME signature to craft an email message with arbitrary content.
How to mitigate CVE-2018-18509
Update to version 60.5.1.