CVE-2018-20340
MEDIUM6.8EPSS 0.17%libu2f-host - security update
Published: 3/21/2019Modified: 4/28/2026
Also known as:DEBIAN-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.
Affected packages (2)
- Debian/libu2f-hostfrom 0, < 1.1.7-1
- Debian/libu2f-hostfrom 0, < 1.1.2-2+deb9u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.8 | CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |