Executive Summary

Informations
Name CVE-2021-42142 First vendor Publication 2024-01-23
Vendor Cve Last vendor Modification 2024-10-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 9.8
Base Score 9.8 Environmental Score 9.8
impact SubScore 5.9 Temporal Score 9.8
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42142

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-755 Improper Handling of Exceptional Conditions

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

Sources (Detail)

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

Alert History

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Date Informations
2024-10-21 17:27:56
  • Multiple Updates
2024-02-01 21:27:44
  • Multiple Updates
2024-01-31 17:27:27
  • Multiple Updates
2024-01-24 17:27:24
  • Multiple Updates
2024-01-24 00:27:23
  • First insertion