What is the vulnerability ID?

The vulnerability ID is CVE-2022-35409.

What is the severity rating of CVE-2022-35409?

The severity rating of CVE-2022-35409 is critical.

What software is affected by CVE-2022-35409?

The affected software includes ARM mbed TLS up to version 2.28.1 and versions 3.0.0 to 3.2.0, as well as Debian Debian Linux version 10.0.

What is the impact of CVE-2022-35409?

An unauthenticated attacker can send an invalid ClientHello message to a DTLS server, causing a heap-based buffer over-read of up to 255 bytes, which can result in a server crash or information disclosure.

How can I fix the vulnerability CVE-2022-35409?

To fix the vulnerability, update ARM mbed TLS to version 2.28.1 or newer, or update to ARM mbed TLS version 3.2.0 or newer. For Debian Debian Linux, update to the latest available version.

Vulnerability/
CVE-2022-35409

critical

9.1

CWE

125

15/7/2022

3/3/2023

CVE-2022-35409

First published: Fri Jul 15 2022(Updated: )

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.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
ARM mbed TLS	<2.28.1
ARM mbed TLS	>=3.0.0<3.2.0
Debian Debian Linux	=10.0

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Frequently Asked Questions

What is the vulnerability ID?
The vulnerability ID is CVE-2022-35409.
What is the severity rating of CVE-2022-35409?
The severity rating of CVE-2022-35409 is critical.
What software is affected by CVE-2022-35409?
The affected software includes ARM mbed TLS up to version 2.28.1 and versions 3.0.0 to 3.2.0, as well as Debian Debian Linux version 10.0.
What is the impact of CVE-2022-35409?
An unauthenticated attacker can send an invalid ClientHello message to a DTLS server, causing a heap-based buffer over-read of up to 255 bytes, which can result in a server crash or information disclosure.
How can I fix the vulnerability CVE-2022-35409?
To fix the vulnerability, update ARM mbed TLS to version 2.28.1 or newer, or update to ARM mbed TLS version 3.2.0 or newer. For Debian Debian Linux, update to the latest available version.

collector/nvd-index
vendor/arm
canonical/arm mbed tls
version/arm mbed tls/3.0.0
vendor/debian
canonical/debian debian linux
version/debian debian linux/10.0

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