[USN-5811-3] Sudo vulnerability

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-5811-3
January 30, 2023

sudo vulnerability
==========================================================================

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-5811-1 fixed a vulnerability in Sudo. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

 Matthieu Barjole and Victor Cutillas discovered that Sudo incorrectly
 handled user-specified editors when using the sudoedit command. A local
 attacker that has permission to use the sudoedit command could possibly use
 this issue to edit arbitrary files. (CVE-2023-22809)

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+esm7
  sudo-ldap                       1.8.9p5-1ubuntu1.5+esm7

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

References:
  https://ubuntu.com/security/notices/USN-5811-3
  https://ubuntu.com/security/notices/USN-5811-1
  CVE-2023-22809
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