{"id":"CVE-2023-49208","aliases":["DEBIAN-CVE-2023-49208","EUVD-2023-53212","GHSA-x7rh-wvh4-cx6x","UBUNTU-CVE-2023-49208"],"status":"published","title":"scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2...","description":"scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2 credentials validation in webauthn registration.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00882,"percentile":0.59479,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-120"],"published":"2023-11-23T00:00:00Z","modified":"2026-10-28T10:39:19Z","fixes":[{"ecosystem":"Debian:12","package":"glewlwyd","fixed_in":["2.7.5-3+deb12u1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"glewlwyd","fixed_in":["2.7.6+ds-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"glewlwyd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.5-3+deb12u1"}]}],"versions":["2.7.5-3"]},{"source":"osv","ecosystem":"Debian:13","package":"glewlwyd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.6+ds-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"glewlwyd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1-2ubuntu1","1.2.2-1","1.3.1-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"glewlwyd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.9-2","1.4.9-3"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"glewlwyd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.2-3","2.6.1-1","2.6.1-1build1"]}],"products":[{"vendor":"glewlwyd_sso_server_project","product":"glewlwyd_sso_server"}],"references":[{"url":"https://github.com/babelouest/glewlwyd/commit/f9d8c06aae8dfe17e761b18b577ff169e059e812","tags":["x_transferred","Patch","fix","report"]},{"url":"https://github.com/babelouest/glewlwyd/releases/tag/v2.7.6","tags":["x_transferred","Patch","Release Notes","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-49208","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-x7rh-wvh4-cx6x"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49208.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-49208","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-49208","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-49208","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-49208","description":"scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2 credentials validation in webauthn registration.","status":"published","published":"2023-11-23T00:00:00Z","modified":"2025-06-05T14:14:45.618Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:35:12.998024Z"}],"euvd":[{"id":"EUVD-2023-53212","description":"scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2 credentials validation in webauthn registration.","status":"published","published":"2023-11-23T00:00:00Z","modified":"2025-06-05T14:14:45Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T20:32:29.13667Z"}],"ghsa":[{"id":"GHSA-x7rh-wvh4-cx6x","title":"scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2...","description":"scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2 credentials validation in webauthn registration.","status":"published","published":"2023-11-23T18:30:33Z","modified":"2023-11-30T21:30:29Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:55:08.006495Z"}],"nvd":[{"id":"CVE-2023-49208","description":"scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2 credentials validation in webauthn registration.","status":"published","published":"2023-11-23T18:15:07.41Z","modified":"2026-06-17T06:35:36.227Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:08:49.393375Z"}],"osv":[{"id":"CVE-2023-49208","description":"scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2 credentials validation in webauthn registration.","status":"published","published":"2023-11-23T00:00:00Z","modified":"2026-10-28T10:39:19.708987501Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:34.72355Z"},{"id":"DEBIAN-CVE-2023-49208","description":"scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2 credentials validation in webauthn registration.","status":"published","published":"2023-11-23T18:15:07.41Z","modified":"2026-10-26T18:02:50.583918534Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:40.275853Z"},{"id":"UBUNTU-CVE-2023-49208","description":"scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2 credentials validation in webauthn registration.","status":"published","published":"2023-11-23T18:15:00Z","modified":"2025-10-24T05:02:21Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T16:54:23.935133Z"}]}}
