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ubuntucveUbuntu.comUB:CVE-2021-22543
HistoryMay 26, 2021 - 12:00 a.m.

CVE-2021-22543

2021-05-2600:00:00
ubuntu.com
ubuntu.com
15

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.3%

JSON

An issue was discovered in Linux: KVM through Improper handling of
VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages
being freed while still accessible by the VMM and guest. This allows users
with the ability to start and control a VM to read/write random pages of
memory and can result in local privilege escalation.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-159.167UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-84.94UNKNOWN
ubuntu21.04noarchlinux< 5.11.0-34.36UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1112.119UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1056.59UNKNOWN
ubuntu21.04noarchlinux-aws< 5.11.0-1017.18UNKNOWN
ubuntu20.04noarchlinux-aws-5.11< 5.11.0-1017.18~20.04.1UNKNOWN
ubuntu18.04noarchlinux-aws-5.4< 5.4.0-1056.59~18.04.1UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1112.119~16.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu20.04noarchlinux-azure< 5.4.0-1058.60UNKNOWN
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1-10 of 501

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photon
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Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2021-2.0-0387
2021-09-02 00:00:00
Important Photon OS Security Update - PHSA-2021-0302
2021-09-19 00:00:00
Important Photon OS Security Update - PHSA-2021-3.0-0302
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Photon OS 2.0: Linux PHSA-2021-2.0-0387
2021-09-07 00:00:00
RHEL 7 : RHV-H security update (redhat-virtualization-host) 4.3.19 (Moderate) (RHSA-2021:3943)
2021-10-22 00:00:00
Amazon Linux 2 : kernel (ALAS-2021-1699)
2021-09-29 00:00:00
cloudlinux
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Fixed CVE-2021-22543 in kernel
2022-07-28 14:22:27
Fixed CVE-2021-22543 in kernel
2022-07-28 14:18:22
ibm
ibm
Security Bulletin: Publicly disclosed vulnerability from Kernel affects IBM Netezza Host Management
2022-10-20 11:04:10
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
Security Bulletin: IBM Data Risk Manager is affected by multiple vulnerabilities
2022-01-13 15:19:45
debiancve
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CVE-2021-22543
2021-05-26 11:15:00
amazon
amazon
Important: kernel
2021-08-13 17:31:00
Important: kernel
2021-09-30 19:25:00
prion
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Privilege escalation
2021-05-26 11:15:00
redhat
redhat
(RHSA-2022:5640) Important: kernel security update
2022-07-19 15:01:17
(RHSA-2021:3943) Moderate: RHV-H security update (redhat-virtualization-host) 4.3.19
2021-10-20 09:37:42
(RHSA-2021:4000) Important: kpatch-patch security update
2021-10-26 15:34:21
cve
cve
CVE-2021-22543
2021-05-26 11:15:00
f5
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K01217337 : Linux kernel vulnerability CVE-2021-22543
2022-02-07 00:00:00
osv
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linux-raspi, linux-raspi-5.4 vulnerabilities
2021-09-22 00:34:54
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2021-08-10 11:56:07
Important: kernel-rt security and bug fix update
2021-08-10 12:10:45
fedora
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[SECURITY] Fedora 34 Update: kernel-5.12.14-300.fc34
2021-07-08 00:58:19
[SECURITY] Fedora 33 Update: kernel-5.12.14-200.fc33
2021-07-08 01:08:51
openvas
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Fedora: Security Advisory for kernel (FEDORA-2021-95f2f1cfc7)
2021-07-11 00:00:00
Ubuntu: Security Advisory (USN-5071-3)
2021-09-23 00:00:00
Fedora: Security Advisory for kernel (FEDORA-2021-fe826f202e)
2021-07-11 00:00:00
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2021-09-22 00:00:00
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Updated kernel-linus packages fix security vulnerabilities
2021-07-12 23:26:21
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2021-07-12 23:26:21
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kernel security, bug fix, and enhancement update
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2021-09-16 00:00:00
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2021-11-17 15:22:13
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2021-08-11 00:00:00
Security update for the Linux Kernel (important)
2021-08-14 00:00:00
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cloudfoundry
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2021-10-04 00:00:00
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2021-10-28 00:00:00
debian
debian
[SECURITY] [DLA 2785-1] linux-4.19 security update
2021-10-15 21:50:44
[SECURITY] [DLA 2843-1] linux security update
2021-12-16 21:27:40

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.3%

JSON
Related for UB:CVE-2021-22543
photon3redhatcve1nessus75cloudlinux2ibm4debiancve1amazon2prion1redhat28cve1f51osv13fedora2openvas30ubuntu8mageia2rocky2oraclelinux6almalinux1centos1suse4cloudfoundry2debian2