CVE-2022-27240

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-27240
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-27240.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-27240
Downstream
Published
2022-03-18T06:15:08Z
Modified
2025-10-13T12:02:20.181323Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

scheme/webauthn.c in Glewlwyd SSO server 2.x before 2.6.2 has a buffer overflow associated with a webauthn assertion.

References

Affected packages

Git / github.com/babelouest/glewlwyd

Affected ranges

Type
GIT
Repo
https://github.com/babelouest/glewlwyd
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
4c5597c155bfbaf6491cf6b83479d241ae66940a
Fixed
d147ccd0c493b1fad5a2bcd2a9a5c6d3fda9ae1c

Affected versions

1.*

1.0
1.0.1
1.1
1.1.1
1.1.2
1.2
1.2.1
1.2.2

v1.*

v1.2.3
v1.2.4
v1.3
v1.3.1
v1.3.2
v1.3.2-b
v1.3.2-b.2
v1.3.2-b.3
v1.3.2-b.4
v1.3.2-b.5
v1.3.2-b.6
v1.3.3
v1.4.0
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.4.6
v1.4.7
v1.4.8
v1.4.9

v2.*

v2.0.0
v2.0.0-b1
v2.0.0-b2
v2.0.0-b3
v2.0.0-rc1
v2.0.0-rc2
v2.1.0
v2.1.1
v2.2.0
v2.3.0
v2.3.1
v2.3.2
v2.4.0
v2.5.0
v2.5.1
v2.5.2
v2.5.3
v2.6.0
v2.6.1

Database specific 

{
    "vanir_signatures": [
        {
            "signature_version": "v1",
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "220808046081210396080077479638927040481",
                    "57273834636401937923658788307504268900",
                    "313108989129243707049059965441053762188",
                    "228164923958231496861717270284664263050",
                    "234309396422907365673195692716210437506",
                    "231881941146739342230003207148563531694",
                    "169004794240369310944560637058773310332",
                    "336525734495495921256508124459061621204"
                ]
            },
            "deprecated": false,
            "id": "CVE-2022-27240-63f1fb6a",
            "source": "https://github.com/babelouest/glewlwyd/commit/4c5597c155bfbaf6491cf6b83479d241ae66940a",
            "signature_type": "Line",
            "target": {
                "file": "src/scheme/webauthn.c"
            }
        },
        {
            "signature_version": "v1",
            "digest": {
                "length": 10261.0,
                "function_hash": "57275488854267954372487593094167411292"
            },
            "deprecated": false,
            "id": "CVE-2022-27240-9a76c3ff",
            "source": "https://github.com/babelouest/glewlwyd/commit/4c5597c155bfbaf6491cf6b83479d241ae66940a",
            "signature_type": "Function",
            "target": {
                "function": "check_assertion",
                "file": "src/scheme/webauthn.c"
            }
        }
    ]
}