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
Fixed 3.20240813.0ubuntu0.18.04.1+esm2
16.04 LTS xenial
Fixed 3.20240813.0ubuntu0.16.04.1+esm2
14.04 LTS trusty Ignored trusty doesn’t support early microcode loading at runtime

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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