Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.10 : Intel Microcode vulnerabilities (USN-7269-1)

medium Nessus Plugin ID 216387

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7269-1 advisory.

Ke Sun, Paul Grosen and Alyssa Milburn discovered that some Intel Processors did not properly implement Finite State Machines (FSMs) in Hardware Logic. A local privileged attacker could use this issue to cause a denial of service.

(CVE-2024-31068)

It was discovered that some Intel Processors with Intel SGX did not properly restrict access to the EDECCSSA user leaf function. A local authenticated attacker could use this issue to cause a denial of service. (CVE-2024-36293)

Ke Sun, Alyssa Milburn, Benoit Morgan, and Erik Bjorge discovered that the UEFI firmware for some Intel processors did not properly restrict access. An authenticated local attacker could use this issue to cause a denial of service. (CVE-2024-39279)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected intel-microcode package.

See Also

https://ubuntu.com/security/notices/USN-7269-1

Plugin Details

Severity: Medium

ID: 216387

File Name: ubuntu_USN-7269-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 2/17/2025

Updated: 2/17/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2024-39279

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.8

Threat Score: 3.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.10, p-cpe:/a:canonical:ubuntu_linux:intel-microcode

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 2/17/2025

Vulnerability Publication Date: 2/12/2025

Reference Information

CVE: CVE-2024-31068, CVE-2024-36293, CVE-2024-39279

USN: 7269-1