CVE Vulnerability

CVE-2020-27222

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://bugs.eclipse.org/bugs/show_bug.cgi?id=570844 Permissions Required Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:eclipse:californium:*:*:*:*:*:*:*:*
Information

Published : 2021-02-03 04:15

Updated : 2021-02-09 03:21

NVD link : CVE-2020-27222

Mitre link : CVE-2020-27222

Products Affected
No products.
CWE
NVD-CWE-Other