USN-4288-2: ppp vulnerability

2 March 2020

ppp vulnerability

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

  • Ubuntu 14.04 ESM
  • Ubuntu 12.04 ESM


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

Software Description

  • ppp - Point-to-Point Protocol (PPP)


USN-4288-1 fixed a vulnerability in ppp. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that ppp incorrectly handled certain rhostname values. A remote attacker could use this issue to cause ppp to crash, resulting in a denial of service, or possibly execute arbitrary code.

Update instructions

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

Ubuntu 14.04 ESM
ppp - 2.4.5-5.1ubuntu2.3+esm1
Ubuntu 12.04 ESM
ppp - 2.4.5-5ubuntu1.3

To update your system, please follow these instructions:

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