A Sudo security update has been released for Ubuntu Linux 14.04 ESM.

USN-3968-3: Sudo vulnerabilities

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Ubuntu Security Notice USN-3968-3
September 28, 2020

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

- Ubuntu 14.04 ESM

Summary:

Several security issues were fixed in Sudo.

Software Description:
- sudo: Provide limited super user privileges to specific users

Details:

USN-3968-1 fixed several vulnerabilities in Sudo. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

Florian Weimer discovered that Sudo incorrectly handled the noexec
restriction when used with certain applications. A local attacker could
possibly use this issue to bypass configured restrictions and execute
arbitrary commands. (CVE-2016-7076, CVE-2016-7032)

Update instructions:

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

Ubuntu 14.04 ESM:
sudo 1.8.9p5-1ubuntu1.5+esm5
sudo-ldap 1.8.9p5-1ubuntu1.5+esm5

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

References:
  https://usn.ubuntu.com/3968-3
  https://usn.ubuntu.com/3968-1
CVE-2016-7032, CVE-2016-7076