Ubuntu Security Notice USN-2595-1
5th May, 2015
ppp vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
ppp could be made to crash if it received specially crafted network
traffic.
Software description
- ppp
– Point-to-Point Protocol (PPP)
Details
It was discovered that ppp incorrectly handled large PIDs. When pppd is
used with a RADIUS server, a remote attacker could use this issue to cause
it to crash, resulting in a denial of service.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 14.10:
-
ppp
2.4.5-5.1ubuntu3.2
- Ubuntu 14.04 LTS:
-
ppp
2.4.5-5.1ubuntu2.2
- Ubuntu 12.04 LTS:
-
ppp
2.4.5-5ubuntu1.2
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.