Input validation error in Eclipse Californium - CVE-2020-27222
Published: February 3, 2021 / Updated: February 8, 2021
Vulnerability identifier: #VU50424
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-27222
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a DTLS handshake failure with TLS parameter mismatch when setting the internal state. A remote attacker can cause the certificate based (x509 and RPK) DTLS handshakes to fail and perform a denial of service (DoS) attack.
Affected software
Eclipse Californium
How to mitigate CVE-2020-27222
Install updates from vendor's website.
Eclipse Californium - update to 2.6.1