An issue was discovered in Contiki-NG tinyDTLS through... · CVE-2021-42142 · GitHub Advisory Database · GitHub

An issue was discovered in Contiki-NG tinyDTLS through...

Critical severity Unreviewed Published Jan 24, 2024 to the GitHub Advisory Database • Updated Jan 31, 2024

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. DTLS servers mishandle the early use of a large epoch number. This vulnerability allows remote attackers to cause a denial of service and false-positive packet drops.

References

Published by the National Vulnerability Database

Jan 23, 2024

Published to the GitHub Advisory Database Jan 24, 2024

Last updated Jan 31, 2024

Severity

Critical

9.8

/ 10

CVSS base metrics

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H