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ubuntuUbuntuUSN-5072-1
HistorySep 08, 2021 - 12:00 a.m.

Linux kernel vulnerabilities

2021-09-0800:00:00
ubuntu.com
109
kvm hypervisor
amd processors
nested guest vms
physical memory
cve-2021-3656
cve-2021-3653
ubuntu 20.04 lts
linux-azure-5.8
linux-oem-5.10

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

8.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.6

Confidence

High

EPSS

0.001

Percentile

35.2%

JSON

Releases

  • Ubuntu 20.04 LTS

Packages

  • linux-azure-5.8 - Linux kernel for Microsoft Azure cloud systems
  • linux-oem-5.10 - Linux kernel for OEM systems

Details

Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor
implementation for AMD processors in the Linux kernel allowed a guest VM to
disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a
guest VM could use this to read or write portions of the host’s physical
memory. (CVE-2021-3656)

Maxim Levitsky discovered that the KVM hypervisor implementation for AMD
processors in the Linux kernel did not properly prevent a guest VM from
enabling AVIC in nested guest VMs. An attacker in a guest VM could use this
to write to portions of the host’s physical memory. (CVE-2021-3653)

Related

redhat 18
osv 16
fedora 2
nessus 69
oraclelinux 15
openvas 26
ubuntu 9
ibm 1
mageia 2
centos 1
cloudfoundry 1
prion 2
cbl_mariner 3
rocky 4
debiancve 2
redhatcve 2
f5 2
ubuntucve 2
nvd 2
redos 1
veracode 1
cve 2
almalinux 2
cvelist 2
amazon 1
photon 3
suse 3
debian 3
cloudlinux 2
redhat
redhat
(RHSA-2021:3909) Moderate: kernel-rt security and bug fix update
2021-10-19 06:33:11
(RHSA-2021:3676) Moderate: kernel security, bug fix, and enhancement update
2021-09-28 13:53:01
(RHSA-2021:3904) Moderate: kernel security and bug fix update
2021-10-19 06:26:34
osv
osv
linux-azure-5.8, linux-oem-5.10 vulnerabilities
2021-09-08 23:48:20
linux-oem-5.13 vulnerabilities
2021-09-16 16:49:22
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-hwe, linux-kvm, linux-oracle, linux-snapdragon vulnerabilities
2021-09-09 01:48:36
fedora
fedora
[SECURITY] Fedora 33 Update: kernel-5.13.12-100.fc33
2021-08-21 01:20:26
[SECURITY] Fedora 34 Update: kernel-5.13.12-200.fc34
2021-08-21 01:08:00
nessus
nessus
Oracle Linux 7 / 8 : Unbreakable Enterprise kernel-container (ELSA-2021-9421)
2021-08-16 00:00:00
RHEL 8 : kernel (RHSA-2021:3904)
2021-10-20 00:00:00
Oracle Linux 7 : Unbreakable Enterprise kernel-container (ELSA-2021-9422)
2021-08-16 00:00:00
oraclelinux
oraclelinux
Unbreakable Enterprise kernel-container security update
2021-08-16 00:00:00
Unbreakable Enterprise kernel-container security update
2021-08-16 00:00:00
Unbreakable Enterprise kernel security update
2021-08-16 00:00:00
openvas
openvas
Ubuntu: Security Advisory (USN-5072-1)
2021-09-09 00:00:00
Fedora: Security Advisory for kernel (FEDORA-2021-a424256622)
2021-08-23 00:00:00
Fedora: Security Advisory for kernel (FEDORA-2021-33819e6b09)
2021-08-23 00:00:00
ubuntu
ubuntu
Linux kernel (OEM) vulnerabilities
2021-09-16 00:00:00
Kernel Live Patch Security Notice
2021-09-13 00:00:00
Linux kernel vulnerabilities
2021-09-09 00:00:00
ibm
ibm
Security Bulletin: Multiple vulnerabilities in Linux Kernel affect IBM QRadar SIEM (CVE-2021-22543, CVE-2021-3653, CVE-2021-3656, CVE-2021-37576)
2022-04-28 20:56:41
mageia
mageia
Updated kernel-linus packages fix security vulnerabilities
2021-08-23 08:28:48
Updated kernel packages fix security vulnerabilities
2021-08-23 08:28:48
centos
centos
bpftool, kernel, perf, python security update
2021-11-17 15:22:13
cloudfoundry
cloudfoundry
USN-5071-2: Linux kernel (HWE) vulnerabilities | Cloud Foundry
2021-10-04 00:00:00
prion
prion
Input validation
2021-09-29 20:15:00
Input validation
2022-03-04 19:15:00
cbl_mariner
cbl_mariner
CVE-2021-3653 affecting package kernel for versions less than 5.10.78.1-1
2022-04-09 06:52:47
CVE-2021-3653 affecting package kernel 5.10.189.1-1
2021-11-03 19:21:29
CVE-2021-3656 affecting package kernel 5.10.161.1-1
2022-03-10 23:47:45
rocky
rocky
kernel security, bug fix, and enhancement update
2021-09-15 09:41:20
kernel-rt security and bug fix update
2021-09-15 09:40:56
kernel-rt security and bug fix update
2021-11-02 09:33:51
debiancve
debiancve
CVE-2021-3653
2021-09-29 20:15:08
CVE-2021-3656
2022-03-04 19:15:08
redhatcve
redhatcve
CVE-2021-3653
2021-08-16 14:54:06
CVE-2021-3656
2021-08-16 14:54:06
f5
f5
K11546763 : Linux kernel vulnerability CVE-2021-3653
2022-01-20 00:00:00
K80212034 : Linux kernel vulnerability CVE-2021-3656
2022-01-20 00:00:00
ubuntucve
ubuntucve
CVE-2021-3653
2021-08-16 00:00:00
CVE-2021-3656
2021-08-16 00:00:00
nvd
nvd
CVE-2021-3653
2021-09-29 20:15:08
CVE-2021-3656
2022-03-04 19:15:08
redos
redos
ROS-20220207-01
2022-02-07 00:00:00
veracode
veracode
Denial Of Service (DoS)
2021-09-11 17:29:29
cve
cve
CVE-2021-3656
2022-03-04 19:15:08
CVE-2021-3653
2021-09-29 20:15:08
almalinux
almalinux
Moderate: kernel security, bug fix, and enhancement update
2021-09-15 09:41:20
Important: kernel security, bug fix, and enhancement update
2021-11-02 07:47:41
cvelist
cvelist
CVE-2021-3653
2021-09-29 19:41:01
CVE-2021-3656
2022-03-04 18:41:26
amazon
amazon
Medium: kernel
2021-09-08 23:35:00
photon
photon
Important Photon OS Security Update - PHSA-2021-3.0-0302
2021-09-19 00:00:00
Important Photon OS Security Update - PHSA-2021-4.0-0095
2021-09-04 00:00:00
Important Photon OS Security Update - PHSA-2021-0302
2021-09-19 00:00:00
suse
suse
Security update for the Linux Kernel (important)
2021-09-15 00:00:00
Security update for the Linux Kernel (important)
2021-09-23 00:00:00
Security update for the Linux Kernel (important)
2021-09-21 00:00:00
debian
debian
[SECURITY] [DSA 4978-1] linux security update
2021-09-25 08:09:05
[SECURITY] [DSA 4978-1] linux security update
2021-09-25 08:09:05
[SECURITY] [DLA 2785-1] linux-4.19 security update
2021-10-15 21:50:44
cloudlinux
cloudlinux
kernel: Fix of 7 CVEs
2024-02-29 11:06:21
kernel: Fix of 7 CVEs
2024-02-29 11:04:23

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

8.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.6

Confidence

High

EPSS

0.001

Percentile

35.2%

JSON
Related for USN-5072-1
redhat18osv16fedora2nessus69oraclelinux15openvas26ubuntu9ibm1mageia2centos1cloudfoundry1prion2cbl_mariner3rocky4debiancve2redhatcve2f52ubuntucve2nvd2redos1veracode1cve2almalinux2cvelist2amazon1photon3suse3debian3cloudlinux2