CVE-2021-42142
First published: Tue Jan 23 2024(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Contiki-NG | <=2018-08-30 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-42142?
CVE-2021-42142 has been classified as a denial of service vulnerability.
How do I fix CVE-2021-42142?
To fix CVE-2021-42142, update to a version of tinyDTLS released after August 30, 2018.
What impact does CVE-2021-42142 have on DTLS servers?
CVE-2021-42142 can cause denial of service and false-positive packet drops on DTLS servers.
Are all versions of tinyDTLS affected by CVE-2021-42142?
Only versions of tinyDTLS up to and including 2018-08-30 are affected by CVE-2021-42142.
Who can exploit CVE-2021-42142?
CVE-2021-42142 can be exploited by remote attackers to disrupt DTLS server operations.
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