Filtered by vendor Contiki-ng Subscriptions
Filtered by product Tinydtls Subscriptions
Total 6 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2021-42147 1 Contiki-ng 1 Tinydtls 2024-11-21 9.1 Critical
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.
CVE-2021-42146 1 Contiki-ng 1 Tinydtls 2024-11-21 7.5 High
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).
CVE-2021-42145 1 Contiki-ng 1 Tinydtls 2024-11-21 7.5 High
An assertion failure discovered in in check_certificate_request() in Contiki-NG tinyDTLS through master branch 53a0d97 allows attackers to cause a denial of service.
CVE-2021-42143 1 Contiki-ng 1 Tinydtls 2024-11-21 9.1 Critical
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.
CVE-2021-42142 1 Contiki-ng 1 Tinydtls 2024-11-21 9.8 Critical
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.
CVE-2021-42141 1 Contiki-ng 1 Tinydtls 2024-11-21 9.8 Critical
An issue was discovered 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.