mbedtls: An issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0
CVE-2022-35409 is fixed in mbedtls on 1 platform, first by DEBIAN-CVE-2022-35409, released July 15, 2022. It is not reported as exploited. Patch Radar priority: Urgent.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| mbedtls · Debian 12.15 (bookworm) | 2.28.1-1 | DEBIAN-CVE-2022-35409 | Jul 15, 2022 |
| mbedtls · Debian 13.5 (trixie) | 2.28.1-1 | DEBIAN-CVE-2022-35409 | Jul 15, 2022 |
| mbedtls · Debian 14 | 2.28.1-1 | DEBIAN-CVE-2022-35409 | Jul 15, 2022 |
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