cve/2018/CVE-2018-20340.md

CVE-2018-20340

Description

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.

POC

Reference

• https://blog.inhq.net/posts/yubico-libu2f-host-vuln-part1/
• https://blog.inhq.net/posts/yubico-libu2f-host-vuln-part1/

Github

No PoCs found on GitHub currently.