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

Configuration 1 (hide)

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

History

09 Feb 2021, 15:21

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : 5.0
v3 : 7.5
CPE cpe:2.3:a:eclipse:californium:*:*:*:*:*:*:*:*
References (CONFIRM) https://bugs.eclipse.org/bugs/show_bug.cgi?id=570844 - (CONFIRM) https://bugs.eclipse.org/bugs/show_bug.cgi?id=570844 - Permissions Required, Vendor Advisory
CWE NVD-CWE-Other

03 Feb 2021, 17:15

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

03 Feb 2021, 16:15

Type Values Removed Values Added
New CVE

Information

Published : 2021-02-03 16:15

Updated : 2023-12-10 13:41


NVD link : CVE-2020-27222

Mitre link : CVE-2020-27222

CVE.ORG link : CVE-2020-27222


JSON object : View

Products Affected

eclipse

  • californium
CWE
NVD-CWE-Other CWE-372

Incomplete Internal State Distinction