{"schema_version":"1.9.0","id":"CVE-2022-35409","published":"2022-07-15T00:00:00Z","modified":"2026-08-27T03:30:28.101593010Z","related":["openSUSE-SU-2022:10247-1","openSUSE-SU-2024:12478-1","openSUSE-SU-2026:11119-1"],"details":"An issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0. In some configurations, an unauthenticated attacker can send an invalid ClientHello message to a DTLS server that causes a heap-based buffer over-read of up to 255 bytes. This can cause a server crash or possibly information disclosure based on error responses. Affected configurations have MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE enabled and MBEDTLS_SSL_IN_CONTENT_LEN less than a threshold that depends on the configuration: 258 bytes if using mbedtls_ssl_cookie_check, and possibly up to 571 bytes with a custom cookie check function.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mbed-tls/mbedtls","events":[{"introduced":"8df2f8e7b9c7bb9390ac74bb7bace27edca81a2b"},{"fixed":"3aef7670b78ddebf80f4ad38b9a0059d40021832"}],"database_specific":{"cpe":"cpe:2.3:a:trustedfirmware:mbed_tls:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"3.0.0"},{"fixed":"3.2.0"}],"source":"CPE_RANGE"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-35409.json"}}],"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/35xxx/CVE-2022-35409.json"},{"type":"ADVISORY","url":"https://mbed-tls.readthedocs.io/en/latest/security-advisories/advisories/mbedtls-security-advisory-2022-07.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-35409"},{"type":"PACKAGE","url":"https://github.com/Mbed-TLS/mbedtls/releases"},{"type":"ARTICLE","url":"https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"}],"database_specific":{"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/35xxx/CVE-2022-35409.json"}}