DTLS Server Vulnerability in Contiki-NG Affecting Network Security
CVE-2021-42142

9.8CRITICAL

Key Information:

Vendor

Contiki-ng

Status
Tinydtls
Vendor
CVE Published:
23 January 2024

What is CVE-2021-42142?

In Contiki-NG's tinyDTLS, an issue arises from the mishandling of large epoch numbers by DTLS servers. This mismanagement can lead to service disruptions, enabling remote attackers to execute denial of service attacks. Additionally, it may result in false-positive packet drops, compromising the security and reliability of network communications. Organizations using affected versions of tinyDTLS should address this vulnerability to safeguard their infrastructure against potential exploitation.

References

https://github.com/contiki-ng/tinydtls/issues/24
https://seclists.org/fulldisclosure/2024/Jan/15

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.