[USN-3810-1] ppp vulnerability

Marc Deslauriers marc.deslauriers at canonical.com
Tue Nov 6 17:46:54 UTC 2018

Ubuntu Security Notice USN-3810-1
November 06, 2018

ppp vulnerability

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

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS


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

Software Description:
- ppp: Point-to-Point Protocol (PPP)


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:

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

Ubuntu 18.04 LTS:
  ppp                             2.4.7-2+2ubuntu1.1

Ubuntu 16.04 LTS:
  ppp                             2.4.7-1+2ubuntu1.16.04.1

Ubuntu 14.04 LTS:
  ppp                             2.4.5-5.1ubuntu2.3

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


Package Information:

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