CVE-2022-35409

NameCVE-2022-35409
DescriptionAn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
mbedtls (PTS)buster2.16.0-1vulnerable
bullseye2.16.9-0.1vulnerable
bookworm, sid2.28.1-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
mbedtlssource(unstable)2.28.1-1

Notes

https://github.com/Mbed-TLS/mbedtls-docs/blob/5e9790353d2d9e41e85262eebe52fd90bb49f1e0/security-advisories/advisories/mbedtls-security-advisory-2022-07.md
https://github.com/Mbed-TLS/mbedtls/commit/f333dfab4a6c2d8a604a61558a8f783145161de4 (v2.28.1)
https://github.com/Mbed-TLS/mbedtls/commit/e5af9fabf7d68e3807b6ea78792794b8352dbba2 (v2.28.1)
https://github.com/Mbed-TLS/mbedtls/commit/862acb84033840b7e6376a4155ed5be2a6a4e117 (v2.28.1)
https://github.com/Mbed-TLS/mbedtls/commit/a39170bbed1f5a69f108ea19fe3510c3643d53ab (v2.28.1)
https://github.com/Mbed-TLS/mbedtls/commit/33f41a8fa858128d5e9a1d1e1afbd4e63f24d444 (v2.28.1)
https://github.com/Mbed-TLS/mbedtls/commit/4353d3d593cda3849a04c676288e0c790fa86a3c (v2.28.1)
https://github.com/Mbed-TLS/mbedtls/commit/3c036f54cc3a25e4d6b8003202b7e640522f4621 (v2.28.1)
https://github.com/Mbed-TLS/mbedtls/commit/6b4f062cde84b9df57275676c428508ec6e41211 (v2.28.1)
https://github.com/Mbed-TLS/mbedtls/commit/719c723afc63930d3472a12c0edb654a7d08d6b9 (v2.28.1)

Search for package or bug name: Reporting problems