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CRITICAL · 9.8

CVE-2021-42144

Buffer over-read vulnerability in Contiki-NG tinyDTLS through master branch 53a0d97 allows attackers obtain sensitive information via crafted input to dtls_ccm_decrypt_message().

Vulnerability Description

Buffer over-read vulnerability in Contiki-NG tinyDTLS through master branch 53a0d97 allows attackers obtain sensitive information via crafted input to dtls_ccm_decrypt_message().

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
Contiki-NgContiki-Ng Tinydtls<= 2018-08-30

Related Weaknesses (CWE)

CWE-125

References

FAQ

What is CVE-2021-42144?

CVE-2021-42144 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Buffer over-read vulnerability in Contiki-NG tinyDTLS through master branch 53a0d97 allows attackers obtain sensitive information via crafted input to dtls_ccm_decrypt_message().

How severe is CVE-2021-42144?

CVE-2021-42144 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-42144?

Check the references section above for vendor advisories and patch information. Affected products include: Contiki-Ng Contiki-Ng Tinydtls.