USN-3810-1: ppp vulnerability

Publication date

6 November 2018

Overview

ppp could be made to crash or bypass authentication if it received specially crafted network traffic.


Packages

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

Details

Ivan Gotovchits discovered that ppp incorrectly handled the EAP-TLS
protocol. A remote attacker could use this issue to cause ppp to crash,
resulting in a denial of service, or possibly bypass authentication.

Ivan Gotovchits discovered that ppp incorrectly handled the EAP-TLS
protocol. A remote attacker could use this issue to cause ppp to crash,
resulting in a denial of service, or possibly bypass authentication.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
18.04 bionic ppp –  2.4.7-2+2ubuntu1.1
16.04 xenial ppp –  2.4.7-1+2ubuntu1.16.04.1
14.04 trusty ppp –  2.4.5-5.1ubuntu2.3

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