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Ubuntu Security Notice USN-5811-3

Ubuntu Security Notice USN-5811-3
Posted Jan 30, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5811-3 - USN-5811-1 fixed a vulnerability in Sudo. This update provides the corresponding update for Ubuntu 14.04 ESM. 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.

tags | advisory, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2023-22809
SHA-256 | f1dcb425e05dbefdeb5273307dd7c4045c531a34effb1aeaf896da8bb14e6bc0

Ubuntu Security Notice USN-5811-3

Change Mirror Download
==========================================================================
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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