CVE-2024-25939

Published: 14 August 2024

Mirrored regions with different values in 3rd Generation Intel(R) Xeon(R) Scalable Processors may allow a privileged user to potentially enable denial of service via local access.

From the Ubuntu Security Team

It was discovered that some 3rd Generation Intel Xeon Scalable Processors did not properly handle mirrored regions with different values. A privileged local user could use this to cause a denial of service (system crash).

Priority

Cvss 3 Severity Score

6.0

Score breakdown

Status

Package	Release	Status
intel-microcode Launchpad, Ubuntu, Debian	bionic	Released (3.20240813.0ubuntu0.18.04.1+esm2) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	focal	Released (3.20240813.0ubuntu0.20.04.2)
	jammy	Released (3.20240813.0ubuntu0.22.04.2)
	noble	Released (3.20240813.0ubuntu0.24.04.2)
	trusty	Ignored (trusty doesn't support early microcode loading at runtime)
	upstream	Released (3.20240813.2)
	xenial	Released (3.20240813.0ubuntu0.16.04.1+esm2) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	Patches: upstream: https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/commit/cc27f99dbb6646c9fc298896bf95a82769c21838

Severity score breakdown

Parameter	Value
Base score	6.0
Attack vector	Local
Attack complexity	Low
Privileges required	High
User interaction	None
Scope	Changed
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

References

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