CVE-2021-40818

Katalog CVE

CVSS 9.8 · Critical EPSS 1,5%

Kerentanan Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') pada glewlwyd sso server project glewlwyd sso server. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

scheme/webauthn.c in Glewlwyd SSO server through 2.5.3 has a buffer overflow during FIDO2 signature validation in webauthn registration.

Rincian

Terbit di NVD

8 September 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

EPSS (30 hari)

1,5% peluang dieksploitasi; lebih tinggi dari 73,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/babelouest/glewlwyd/commit/0efd112bb62f566877750ad62ee828bff579b4e2 patch · advisory pihak ketiga
• https://bugs.debian.org/993867 issue tracking · mailing list · advisory pihak ketiga