Debian DLA-2546-1 : intel-microcode security update

medium Nessus Plugin ID 146278

Synopsis

The remote Debian host is missing a security update.

Description

CVE-2020-8695

Observable discrepancy in the RAPL interface for some Intel(R) Processors may allow a privileged user to potentially enable information disclosure via local access.

CVE-2020-8696

Improper removal of sensitive information before storage or transfer in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

CVE-2020-8698

Improper isolation of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

For Debian 9 stretch, these problems have been fixed in version 3.20201118.1~deb9u1.

We recommend that you upgrade your intel-microcode packages.

For the detailed security status of intel-microcode please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/intel-microcode

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected intel-microcode package.

See Also

https://lists.debian.org/debian-lts-announce/2021/02/msg00007.html

https://packages.debian.org/source/stretch/intel-microcode

http://www.nessus.org/u?019586d4

Plugin Details

Severity: Medium

ID: 146278

File Name: debian_DLA-2546.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2/8/2021

Updated: 2/10/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent

Risk Information

VPR

Risk Factor: Medium

Score: 6.1

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:intel-microcode, cpe:/o:debian:debian_linux:9.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/5/2021

Vulnerability Publication Date: 11/12/2020

Reference Information

CVE: CVE-2020-8695, CVE-2020-8696, CVE-2020-8698