Denial of Service Vulnerability in Eclipse Californium by Eclipse
CVE-2020-27222

7.5HIGH

Key Information:

Vendor

The Eclipse Foundation

Status
Eclipse Californium
Vendor
CVE Published:
3 February 2021

What is CVE-2020-27222?

A vulnerability in Eclipse Californium versions 2.3.0 to 2.6.0 allows a Denial of Service (DoS) condition due to a failure in the certificate-based DTLS handshake process. The issue arises because the DTLS server maintains an erroneous internal state following a failed handshake due to a mismatch in TLS parameters. Consequently, clients can exploit this failure to force the DTLS server into a DoS state, necessitating a restart for recovery. Proper updates and mitigations are essential to protect against this security threat.

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Affected Version(s)

Eclipse Californium [2.3.0, 2.6.0]

References

https://bugs.eclipse.org/bugs/show_bug.cgi?id=570844
x_refsource_CONFIRM

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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