USN-1585-1: FreeRADIUS vulnerability

26 September 2012

FreeRADIUS could be made to crash or run programs if it received specially crafted network traffic.

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Releases

Packages

  • freeradius - a high-performance and highly configurable RADIUS server

Details

Timo Warns discovered that FreeRADIUS incorrectly handled certain long
timestamps in client certificates. A remote attacker could exploit this
flaw and cause the FreeRADIUS server 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.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 12.04
Ubuntu 11.10
Ubuntu 11.04

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

References

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Further reading