ALT-PU-2022-5500-1
Package mbedtls updated to version 3.2.1-alt1 for branch sisyphus_riscv64.
Closed vulnerabilities
Published: 2022-07-15
Modified: 2024-11-21
Modified: 2024-11-21
CVE-2022-35409
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.
Severity: CRITICAL (9.1)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
References:
- https://github.com/Mbed-TLS/mbedtls/releases
- https://github.com/Mbed-TLS/mbedtls/releases
- [debian-lts-announce] 20221225 [SECURITY] [DLA 3249-1] mbedtls security update
- [debian-lts-announce] 20221225 [SECURITY] [DLA 3249-1] mbedtls security update
- https://mbed-tls.readthedocs.io/en/latest/security-advisories/advisories/mbedtls-security-advisory-2022-07.html
- https://mbed-tls.readthedocs.io/en/latest/security-advisories/advisories/mbedtls-security-advisory-2022-07.html