CVE-2024-28836: Medium severity Arm mbed TLS vulnerability
An issue was discovered in Mbed TLS 3.5.x before 3.6.0. When negotiating the TLS version on the server side, it can fall back to the TLS 1.2 implementation of the protocol if it is disabled. If the TLS 1.2 implementation was disabled at build time, a TLS 1.2 client could put a TLS 1.3-only server into an infinite loop processing a TLS 1.2 ClientHello, resulting in a denial of service. If the TLS 1.2 implementation was disabled at runtime, a TLS 1.2 client can successfully establish a TLS 1.2 connection with the server.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2024-28836?
CVE-2024-28836 has been rated as a moderate severity vulnerability due to potential information disclosure in certain configurations.
How do I fix CVE-2024-28836?
To fix CVE-2024-28836, upgrade Mbed TLS to version 3.6.0 or later.
What software is affected by CVE-2024-28836?
CVE-2024-28836 affects Mbed TLS version 3.5.x before 3.6.0.
What are the potential risks of CVE-2024-28836?
The risks associated with CVE-2024-28836 include unauthorized fallback to TLS 1.2, potentially exposing sensitive data.
Is there a workaround for CVE-2024-28836?
Currently, disabling TLS 1.2 on the server side configuration is a temporary workaround until an upgrade can be performed.