CVE-2024-24853

Publication date 14 August 2024

Last updated 22 August 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.2 · High

Score breakdown

Incorrect behavior order in transition between executive monitor and SMI transfer monitor (STM) in some Intel(R) Processor may allow a privileged user to potentially enable escalation of privilege via local access.

From the Ubuntu Security Team

It was discovered that some Intel® Processors did not correctly transition between the executive monitor and SMI transfer monitor (STM). A privileged local attacker could use this to escalate their privileges.

Status

Package Ubuntu Release Status
intel-microcode 24.04 LTS noble
Fixed 3.20240813.0ubuntu0.24.04.2
22.04 LTS jammy
Fixed 3.20240813.0ubuntu0.22.04.2
20.04 LTS focal
Fixed 3.20240813.0ubuntu0.20.04.2
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]

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

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
intel-microcode

Severity score breakdown

Parameter Value
Base score 7.2 · High
Attack vector Local
Attack complexity High
Privileges required High
User interaction Required
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H