9.8
CVE-2021-40818
- EPSS 1.43%
- Veröffentlicht 08.09.2021 22:15:11
- Zuletzt bearbeitet 21.11.2024 06:24:50
- Quelle cve@mitre.org
- CVE-Watchlists
- Unerledigt
Loginscheme/webauthn.c in Glewlwyd SSO server through 2.5.3 has a buffer overflow during FIDO2 signature validation in webauthn registration.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Glewlwyd Sso Server Project ≫ Glewlwyd Sso Server Version <= 2.5.3
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 1.43% | 0.696 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 9.8 | 3.9 | 5.9 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
|
| nvd@nist.gov | 7.5 | 10 | 6.4 |
AV:N/AC:L/Au:N/C:P/I:P/A:P
|
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.
https://bugs.debian.org/993867
https://github.com/babelouest/glewlwyd/commit/0efd112bb62f566877750ad62ee828bff579b4e2