[USN-3954-1] FreeRADIUS vulnerabilities

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-3954-1
April 24, 2019

freeradius vulnerabilities
==========================================================================

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

- Ubuntu 19.04
- Ubuntu 18.10
- Ubuntu 18.04 LTS

Summary:

FreeRADIUS could be made to bypass authentication if it received a
specially crafted input.

Software Description:
- freeradius: high-performance and highly configurable RADIUS server

Details:

It was discovered that FreeRADIUS incorrectly handled certain inputs.
An attacker could possibly use this issue to bypass authentication.
(CVE-2019-11234, CVE-2019-11235)

Update instructions:

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

Ubuntu 19.04:
  freeradius                      3.0.17+dfsg-1ubuntu2.1

Ubuntu 18.10:
  freeradius                      3.0.16+dfsg-3ubuntu1.1

Ubuntu 18.04 LTS:
  freeradius                      3.0.16+dfsg-1ubuntu3.1

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

References:
  https://usn.ubuntu.com/usn/usn-3954-1
  CVE-2019-11234, CVE-2019-11235

Package Information:
  https://launchpad.net/ubuntu/+source/freeradius/3.0.17+dfsg-1ubuntu2.1
  https://launchpad.net/ubuntu/+source/freeradius/3.0.16+dfsg-3ubuntu1.1
  https://launchpad.net/ubuntu/+source/freeradius/3.0.16+dfsg-1ubuntu3.1
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