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contiki-ng contiki-ng tinydtls vulnerabilities and exploits

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9.8
CVSSv3
CVE-2021-42144
Buffer over-read vulnerability in Contiki-NG tinyDTLS through master branch 53a0d97 allows attackers obtain sensitive information via crafted input to dtls_ccm_decrypt_message().
Contiki-ng Contiki-ng Tinydtls
9.8
CVSSv3
CVE-2021-42142
An issue exists in Contiki-NG tinyDTLS through master branch 53a0d97. DTLS servers mishandle the early use of a large epoch number. This vulnerability allows remote malicious users to cause a denial of service and false-positive packet drops.
Contiki-ng Tinydtls
7.5
CVSSv3
CVE-2021-42145
An assertion failure discovered in in check_certificate_request() in Contiki-NG tinyDTLS through master branch 53a0d97 allows malicious users to cause a denial of service.
Contiki-ng Tinydtls
9.8
CVSSv3
CVE-2021-42141
An issue exists in Contiki-NG tinyDTLS through 2018-08-30. One incorrect handshake could complete with different epoch numbers in the packets Client_Hello, Client_key_exchange, and Change_cipher_spec, which may cause denial of service.
Contiki-ng Tinydtls
9.1
CVSSv3
CVE-2021-42143
An issue exists 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 malicious users to cause a denial of service by sending a malformed ClientHello handshake message with ...
Contiki-ng Tinydtls
7.5
CVSSv3
CVE-2021-42146
An issue exists in Contiki-NG tinyDTLS through master branch 53a0d97. DTLS servers allow remote malicious users to reuse the same epoch number within two times the TCP maximum segment lifetime, which is prohibited in RFC6347. This vulnerability allows remote malicious users to ob...
Contiki-ng Tinydtls 2018-08-30
9.1
CVSSv3
CVE-2021-42147
Buffer over-read vulnerability in the dtls_sha256_update function in Contiki-NG tinyDTLS through master branch 53a0d97 allows remote malicious users to cause a denial of service via crafted data packet.
Contiki-ng Tinydtls 2018-08-30
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
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