CVE-2021-42143

CVSS 9.1 CRITICALEPSS 0.8%CWE-835

Vexday Risk Score

28Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 9.1EPSS 0.8%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

24 Jan 2024Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. An infinite loop bug exists during the handling of a ClientHello handshake message. This bug allows remote attackers to cause a denial of service by sending a malformed ClientHello handshake message with an odd length of cipher suites, which triggers an infinite loop (consuming all resources) and a buffer over-read that can disclose sensitive information.

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

Affected products

n/a · n/a

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References

http://seclists.org/fulldisclosure/2024/Jan/16 https://seclists.org/fulldisclosure/2024/Jan/16