USN-3369-1: FreeRADIUS vulnerabilities

27 July 2017

freeradius vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 17.04
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS


Several security issues were fixed in FreeRADIUS.

Software Description

  • freeradius - high-performance and highly configurable RADIUS server


Guido Vranken discovered that FreeRADIUS incorrectly handled memory when decoding packets. A remote attacker could use this issue to cause FreeRADIUS to crash or hang, resulting in a denial of service, or possibly execute arbitrary code.

Update instructions

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

Ubuntu 17.04
freeradius - 3.0.12+dfsg-4ubuntu1.2
Ubuntu 16.04 LTS
freeradius - 2.2.8+dfsg-0.1ubuntu0.1
Ubuntu 14.04 LTS
freeradius - 2.1.12+dfsg-1.2ubuntu8.2

To update your system, please follow these instructions:

In general, a standard system update will make all the necessary changes.