CVE-2023-46103

Publication date 16 May 2024

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

4.7 · Medium

Score breakdown

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 3.20240514.0ubuntu0.24.04.1
23.10 mantic
Fixed 3.20240514.0ubuntu0.23.10.1
22.04 LTS jammy
Fixed 3.20240514.0ubuntu0.22.04.1
20.04 LTS focal
Fixed 3.20240514.0ubuntu0.20.04.1
18.04 LTS bionic
16.04 LTS xenial
14.04 LTS trusty Ignored end of ESM support, was ignored [trusty doesn't support early microcode loading at runtime]

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Severity score breakdown

Parameter Value
Base score 4.7 · Medium
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H