CVE-2018-20340
Medium
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.
SeverityMedium
CVSS6.8
Exploit probability—
Product
Yubico Libu2f-host
PublishedMar 21, 2019
First seenMar 21, 2019
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| yubico libu2f-host | 1.1.6 | — |
| debian debian_linux | 9.0 | — |
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