CVE-2018-20340

Yubico libu2f-host 1.1.6 contains unchecked buffers in devs.c, which could enable a malicious token to exploit a buffer overflow. An attacker could use this to attempt to execute malicious code using a crafted USB device masquerading as a security token on a computer where the affected library is currently in use. It is not possible to perform this attack with a genuine YubiKey.

Date published : 2019-03-17

https://developers.yubico.com/libu2f-host/Release_Notes.html

https://www.yubico.com/support/security-advisories/ysa-2019-01/