VulnerabilityModified
CVE-2023-49208
scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2 credentials validation in webauthn registration.
CRITICAL 9.8EPSS 0.88%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.88%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2 credentials validation in webauthn registration.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.88% probability · 57th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- glewlwyd sso server project/glewlwyd sso server
- Source
- cve@mitre.org
References
- https://github.com/babelouest/glewlwyd/commit/f9d8c06aae8dfe17e761b18b577ff169e059e812Patch
- https://github.com/babelouest/glewlwyd/releases/tag/v2.7.6Patch, Release Notes
- https://github.com/babelouest/glewlwyd/commit/f9d8c06aae8dfe17e761b18b577ff169e059e812Patch
- https://github.com/babelouest/glewlwyd/releases/tag/v2.7.6Patch, Release Notes
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.