An IPRoute security update has been released for Ubuntu Linux 18.04 LTS.

USN-4357-1: IPRoute vulnerability

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Ubuntu Security Notice USN-4357-1
May 13, 2020

iproute2 vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS

Summary:

IPRoute could be made to execute arbitrary code if it received a specially
crafted input.

Software Description:
- iproute2: networking and traffic control tools

Details:

It was discovered that IPRoute incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code.

Update instructions:

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

Ubuntu 18.04 LTS:
iproute2 4.15.0-2ubuntu1.1

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

References:
  https://usn.ubuntu.com/4357-1
CVE-2019-20795

Package Information:
  https://launchpad.net/ubuntu/+source/iproute2/4.15.0-2ubuntu1.1