Ubuntu Security Notice USN-2122-1
26th February, 2014
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 13.10
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS
Several security issues were fixed in FreeRADIUS.
- freeradius - a high-performance and highly configurable RADIUS server
It was discovered that FreeRADIUS incorrectly handled unix authentication.
A remote user could successfully authenticate with an expired password.
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)
The problem can be corrected by updating your system to the following package version:
- 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
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.