Critical severity9.1NVD Advisory· Published Jan 24, 2024· Updated Jun 17, 2026
CVE-2021-42147
CVE-2021-42147
Description
Buffer over-read vulnerability in the dtls_sha256_update function in Contiki-NG tinyDTLS through master branch 53a0d97 allows remote attackers to cause a denial of service via crafted data packet.
Affected products
3cpe:2.3:a:contiki-ng:tinydtls:2018-08-30:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:contiki-ng:tinydtls:2018-08-30:*:*:*:*:*:*:*
- (no CPE)
- (no CPE)range: <53a0d97
Patches
Vulnerability mechanics
References
2- seclists.org/fulldisclosure/2024/Jan/20nvdMailing ListThird Party Advisory
- seclists.org/fulldisclosure/2024/Jan/20nvd
News mentions
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