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CVE-2020-27222

Published: Feb 3, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-372
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.9%
Top 46.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-372NVD-CWE-Other

Affected Products

Eclipse CaliforniumThe Eclipse Foundation
Mixed
OSS Libraries / generic-library
californiumeclipseDevTools & CI
the eclipse foundationoss-projectOSS Librariesaka eclipse jetty, eclipse mosquitto, eclipse openj9
eclipseoss-projectBEDevTools & CIaka eclipse-foundation

Exploitability

Official Patch Available

References

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

Timeline

Published
Feb 3, 2021
Last Updated
Nov 21, 2024

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