USN-7055-1: FreeRADIUS vulnerability

USN-7055-1: FreeRADIUS vulnerability
3 October 2024

A system authentication measure could be bypassed.

Releases
Ubuntu 24.04 LTS Ubuntu 22.04 LTS Ubuntu 20.04 LTS

Packages
freeradius - high-performance and highly configurable RADIUS server

Details
Goldberg, Miro Haller, Nadia Heninger, Mike Milano, Dan Shumow, Marc
Stevens, and Adam Suhl discovered that FreeRADIUS incorrectly authenticated
certain responses. An attacker able to intercept communications between a
RADIUS client and server could possibly use this issue to forge responses,
bypass authentication, and access network devices and services.

This update introduces new configuration options called “limit_proxy_state”
and “require_message_authenticator” that default to “auto” but should be
set to “yes” once all RADIUS devices have been upgraded on a network.

**Update instructions
**The problem can be corrected by updating your system to the following package versions:

Ubuntu 24.04
freeradius - 3.2.5+dfsg-3~ubuntu24.04.1