CVE-2021-38198

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault.

References

https://github.com/torvalds/linux/commit/b1bd5cba3306691c771d558e94baa73e8b0b96b7

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11

https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html

https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html

Details

Source: MITRE

Published: 2021-08-08

Updated: 2022-01-04

Risk Information

CVSS v2

Base Score: 2.1

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

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Tenable Plugins

View all (32 total)

IDNameProductFamilySeverity
156163Debian DLA-2843-1 : linux - LTS security updateNessusDebian Local Security Checks
high
155959SUSE SLES12 Security Update : kernel (SUSE-SU-2021:3972-1)NessusSuSE Local Security Checks
high
155930SUSE SLES15 Security Update : kernel (SUSE-SU-2021:3969-1)NessusSuSE Local Security Checks
high
155910SUSE SLES12 Security Update : kernel (SUSE-SU-2021:3929-1)NessusSuSE Local Security Checks
high
155902SUSE SLES12 Security Update : kernel (SUSE-SU-2021:3935-1)NessusSuSE Local Security Checks
high
155840SUSE SLES15 Security Update : kernel (SUSE-SU-2021:3876-1)NessusSuSE Local Security Checks
high
155824openSUSE 15 Security Update : kernel (openSUSE-SU-2021:3876-1)NessusSuSE Local Security Checks
high
155814SUSE SLES11 Security Update : kernel (SUSE-SU-2021:14849-1)NessusSuSE Local Security Checks
high
155119EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-2713)NessusHuawei Local Security Checks
high
154352Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-5116-2)NessusUbuntu Local Security Checks
high
154278Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-5116-1)NessusUbuntu Local Security Checks
high
154273Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-5114-1)NessusUbuntu Local Security Checks
high
154133SUSE SLES15 Security Update : kernel (SUSE-SU-2021:3415-1)NessusSuSE Local Security Checks
high
153992Oracle Linux 7 : Unbreakable Enterprise kernel-container (ELSA-2021-9475)NessusOracle Linux Local Security Checks
high
153991Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2021-9474)NessusOracle Linux Local Security Checks
high
153860Amazon Linux AMI : kernel (ALAS-2021-1539)NessusAmazon Linux Local Security Checks
high
153627SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2021:3207-1)NessusSuSE Local Security Checks
high
153625SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2021:3206-1)NessusSuSE Local Security Checks
high
153622SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2021:3205-1)NessusSuSE Local Security Checks
high
153620SUSE SLES12 Security Update : kernel (Live Patch 36 for SLE 12 SP3) (SUSE-SU-2021:3196-1)NessusSuSE Local Security Checks
high
153616SUSE SLES12 Security Update : kernel (SUSE-SU-2021:3217-1)NessusSuSE Local Security Checks
high
153598openSUSE 15 Security Update : kernel (openSUSE-SU-2021:3205-1)NessusSuSE Local Security Checks
high
153581SUSE SLES12 Security Update : kernel (SUSE-SU-2021:3192-1)NessusSuSE Local Security Checks
high
153542SUSE SLES15 Security Update : kernel (SUSE-SU-2021:3179-1)NessusSuSE Local Security Checks
high
153541openSUSE 15 Security Update : kernel (openSUSE-SU-2021:3179-1)NessusSuSE Local Security Checks
high
153540SUSE SLES15 Security Update : kernel (SUSE-SU-2021:3178-1)NessusSuSE Local Security Checks
high
153535SUSE SLES15 Security Update : kernel (SUSE-SU-2021:3177-1)NessusSuSE Local Security Checks
high
153499Photon OS 3.0: Linux PHSA-2021-3.0-0302NessusPhotonOS Local Security Checks
medium
153463SUSE SLES12 / SLES15 Security Update : kernel (Live Patch 0 for SLE 15 SP3) (SUSE-SU-2021:3073-1)NessusSuSE Local Security Checks
high
153418Amazon Linux 2 : kernel (ALAS-2021-1704)NessusAmazon Linux Local Security Checks
high
153414openSUSE 15 Security Update : kernel (openSUSE-SU-2021:1271-1)NessusSuSE Local Security Checks
high
153174Ubuntu 20.04 LTS / 21.04 : Linux kernel vulnerabilities (USN-5070-1)NessusUbuntu Local Security Checks
high