CVE-2020-27222 - CVE House
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Status published High CVE-2020-27222

In Eclipse Californium version 2.3.0 to 2.6.0, the certificate based...

Vulnerability Description

In Eclipse Californium version 2.3.0 to 2.6.0, the certificate based (x509 and RPK) DTLS handshakes accidentally fails, because the DTLS server side sticks to a wrong internal state. That wrong internal state is set by a previous certificate based DTLS handshake failure with TLS parameter mismatch. The DTLS server side must be restarted to recover this. This allow clients to force a DoS.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

The Eclipse Foundation

View all reports →

Affected Software

Eclipse Californium
Vulnerable Versions:
[2.3.0, 2.6.0]

Timeline

Official Publish: February 3rd, 2021
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-372

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.