CVE-2023-46103
Publication date 16 May 2024
Last updated 26 August 2025
Ubuntu priority
Description
Sequence of processor instructions leads to unexpected behavior in Intel(R) Core(TM) Ultra Processors may allow an authenticated user to potentially enable denial of service via local access.
From the Ubuntu Security Team
It was discovered that some Intel® Core™ Ultra processors did not properly handle particular instruction sequences. A local attacker could use this issue to cause a denial of service.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| intel-microcode | 24.04 LTS noble |
Fixed in 3.20240514.0ubuntu0.24.04.1
|
| 22.04 LTS jammy |
Fixed in 3.20240514.0ubuntu0.22.04.1
|
|
| 20.04 LTS focal |
Fixed in 3.20240514.0ubuntu0.20.04.1
|
|
| 18.04 LTS bionic |
Fixed in 3.20240514.0ubuntu0.18.04.1+esm1
|
|
| 16.04 LTS xenial |
Fixed in 3.20240514.0ubuntu0.16.04.1+esm1
|
|
| 14.04 LTS trusty | Ignored end of ESM support, was ignored [trusty doesn't support early microcode loading at runtime] |
Get expanded security coverage with Ubuntu Pro
Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.
Get Ubuntu Pro 30-day free trialSeverity score breakdown
CVSS version: CVSS v3.0
Base score
4.7 · Medium
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
References
Related Ubuntu Security Notices (USN)
- USN-6797-1
- Intel Microcode vulnerabilities
- 29 May 2024