---
title: "CVE-2023-23908\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2023-23908?format=md
keywords: index, follow
---

# CVE-2023-23908

Publication date 8 August 2023

Last updated 26 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**4.4 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2023-23908?format=md#impact-score)

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## Description

Improper access control in some 3rd Generation Intel(R) Xeon(R) Scalable
processors may allow a privileged user to potentially enable information
disclosure via local access.

### From the Ubuntu Security Team

It was discovered that some 3rd Generation Intel(R) Xeon(R) Scalable
processors did not properly restrict access in some situations. A local
privileged attacker could use this to obtain sensitive information.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| intel-microcode | 24.10 oracular | Fixed 3.20230808.1 |
| 24.04 LTS noble | Fixed 3.20230808.1 |
| 23.10 mantic | Fixed 3.20230808.1 |
| 23.04 lunar | Fixed 3.20230808.0ubuntu1 |
| 22.04 LTS jammy | Fixed 3.20230808.0ubuntu0.22.04.1 |
| 20.04 LTS focal | Fixed 3.20230808.0ubuntu0.20.04.1 |
| 18.04 LTS bionic | Fixed 3.20230808.0ubuntu0.18.04.1+esm1  Ubuntu Pro |
| 16.04 LTS xenial | Fixed 3.20230808.0ubuntu0.16.04.1+esm1  Ubuntu Pro |
| 14.04 LTS trusty | Ignored end of standard support |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

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## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

4.4 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Local |
  | Attack complexity | Low |
  | Privileges required | High |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | None |
  | Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 4.4 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-23908)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2023-23908)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2023-23908)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2023-23908)

### Related Ubuntu Security Notices (USN)

+ [USN-6286-1](https://usn.ubuntu.com/USN-6286-1)
+ Intel Microcode vulnerabilities
+ 14 August 2023

### Other references

* <https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00836.html>
* <https://www.cve.org/CVERecord?id=CVE-2023-23908>