CVE-2022-35409
9.1 CRITICALAn issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0
Published: 2022-07-15 · Last updated: 2026-06-05
Severity and scoring
- CVSS
- 9.1 CRITICAL
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- CWE
- CWE-125
Affected products
| Vendor | Product |
|---|---|
| arm | debian_linux, mbed_tls |
| debian | debian_linux, mbed_tls |
| trustedfirmware | debian_linux, mbed_tls |
Description
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2022-35409
- [Other]https://github.com/Mbed-TLS/mbedtls/releases
- [Other]https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html
- [Vendor advisory]https://mbed-tls.readthedocs.io/en/latest/security-advisories/advisories/mbedtls-security-advisory-2022-07.html
- [Other]https://github.com/Mbed-TLS/mbedtls/releases
- [Other]https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html
- [Vendor advisory]https://mbed-tls.readthedocs.io/en/latest/security-advisories/advisories/mbedtls-security-advisory-2022-07.html
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