Ubuntu 13.10: USN-2122-1 Critical: FreeRADIUS DoS Threat

ubuntu

February 26, 2014

Several security issues were fixed in FreeRADIUS.

Summary

Several security issues were fixed in FreeRADIUS.

Software Description:

- freeradius: high-performance and highly configurable RADIUS server

Details:

It was discovered that FreeRADIUS incorrectly handled unix authentication.

A remote user could successfully authenticate with an expired password.

(CVE-2011-4966)

Pierre Carrier discovered that FreeRADIUS incorrectly handled rlm_pap

hash processing. An authenticated user could use this issue to cause

FreeRADIUS to crash, resulting in a denial of service, or possibly execute

arbitrary code. The default compiler options for affected releases should

reduce the vulnerability to a denial of service. (CVE-2014-2015)

Topics Covered

security advisory Ubuntu authentication issue Denial of Service FreeRADIUS

Update Instructions

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

Ubuntu 13.10:
  freeradius                      2.1.12+dfsg-1.2ubuntu5.1

Ubuntu 12.10:
  freeradius                      2.1.12+dfsg-1.1ubuntu0.1

Ubuntu 12.04 LTS:
  freeradius                      2.1.10+dfsg-3ubuntu0.12.04.2

Ubuntu 10.04 LTS:
  freeradius                      2.1.8+dfsg-1ubuntu1.1

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