CVE-2021-42146
Last modified
CVE-2021-42146 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. DTLS servers allow remote attackers to reuse the same epoch number within two times the TCP maximum segment lifetime, which is prohibited in RFC6347. EPSS estimates a 0.66% chance of exploitation in the next 30 days.
Description
An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. DTLS servers allow remote attackers to reuse the same epoch number within two times the TCP maximum segment lifetime, which is prohibited in RFC6347. This vulnerability allows remote attackers to obtain sensitive application (data of connected clients).
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Contiki-Ng | Tinydtls | 2018-08-30 |
References
- https://seclists.org/fulldisclosure/2024/Jan/19Mailing List, Third Party Advisory
- https://seclists.org/fulldisclosure/2024/Jan/19Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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