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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:159350
[Rus]
Version
10
Class
vulnerability
ALTXid
365758
Language
English
Severity
High
Title
Red Hat -- vulnerability in kernel, kernel-rt, kpatch-patch-4_18_0-305 (CVE-2021-22543)
Description
The vulnerability was found in kernel, kernel-rt, kpatch-patch-4_18_0-305.
Family
unix
Platform
CentOS Linux 7
CentOS Linux 8
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 7.2
Red Hat Enterprise Linux 7.3
Red Hat Enterprise Linux 7.4
Red Hat Enterprise Linux 7.6
Red Hat Enterprise Linux 7.7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 8.1
Red Hat Enterprise Linux 8.2
Red Hat Enterprise Linux 8.4
Product
kernel
kernel-rt
kpatch-patch-3_10_0-1062_40_1
kpatch-patch-3_10_0-1160_11_1
kpatch-patch-3_10_0-957_61_1
kpatch-patch-4_18_0-147_27_1
kpatch-patch-4_18_0-193_19_1
kpatch-patch-4_18_0-305
RHV-H
Reference
VENDOR: RHSA-2021:3943
VENDOR: RHSA-2021:3943
Id:
RHSA-2021:3943
Reference:
https://access.redhat.com/errata/RHSA-2021:3943
VENDOR: RHSA-2021:3375
VENDOR: RHSA-2021:3375
Id:
RHSA-2021:3375
Reference:
https://access.redhat.com/errata/RHSA-2021:3375
VENDOR: RHSA-2022:5640
VENDOR: RHSA-2022:5640
Id:
RHSA-2022:5640
Reference:
https://access.redhat.com/errata/RHSA-2022:5640
VENDOR: RHSA-2021:3380
VENDOR: RHSA-2021:3380
Id:
RHSA-2021:3380
Reference:
https://access.redhat.com/errata/RHSA-2021:3380
VENDOR: RHSA-2021:3363
VENDOR: RHSA-2021:3363
Id:
RHSA-2021:3363
Reference:
https://access.redhat.com/errata/RHSA-2021:3363
VENDOR: RHSA-2021:3814
VENDOR: RHSA-2021:3814
Id:
RHSA-2021:3814
Reference:
https://access.redhat.com/errata/RHSA-2021:3814
VENDOR: RHSA-2021:3812
VENDOR: RHSA-2021:3812
Id:
RHSA-2021:3812
Reference:
https://access.redhat.com/errata/RHSA-2021:3812
VENDOR: RHSA-2021:3802
VENDOR: RHSA-2021:3802
Id:
RHSA-2021:3802
Reference:
https://access.redhat.com/errata/RHSA-2021:3802
CESA-2021:3801: CESA-2021:3801
CESA-2021:3801: CESA-2021:3801
Id:
CESA-2021:3801
Reference:
http://lists.centos.org/pipermail/centos-announce/2021-November/060946.html
VENDOR: RHSA-2021:3801
VENDOR: RHSA-2021:3801
Id:
RHSA-2021:3801
Reference:
https://access.redhat.com/errata/RHSA-2021:3801
VENDOR: RHSA-2021:3768
VENDOR: RHSA-2021:3768
Id:
RHSA-2021:3768
Reference:
https://access.redhat.com/errata/RHSA-2021:3768
VENDOR: RHSA-2021:3766
VENDOR: RHSA-2021:3766
Id:
RHSA-2021:3766
Reference:
https://access.redhat.com/errata/RHSA-2021:3766
VENDOR: RHSA-2021:3725
VENDOR: RHSA-2021:3725
Id:
RHSA-2021:3725
Reference:
https://access.redhat.com/errata/RHSA-2021:3725
VENDOR: RHSA-2021:3767
VENDOR: RHSA-2021:3767
Id:
RHSA-2021:3767
Reference:
https://access.redhat.com/errata/RHSA-2021:3767
VENDOR: RHSA-2021:4000
VENDOR: RHSA-2021:4000
Id:
RHSA-2021:4000
Reference:
https://access.redhat.com/errata/RHSA-2021:4000
VENDOR: RHSA-2021:3987
VENDOR: RHSA-2021:3987
Id:
RHSA-2021:3987
Reference:
https://access.redhat.com/errata/RHSA-2021:3987
VENDOR: RHSA-2021:3173
VENDOR: RHSA-2021:3173
Id:
RHSA-2021:3173
Reference:
https://access.redhat.com/errata/RHSA-2021:3173
VENDOR: RHSA-2021:3181
VENDOR: RHSA-2021:3181
Id:
RHSA-2021:3181
Reference:
https://access.redhat.com/errata/RHSA-2021:3181
CVE: CVE-2021-22543
CVE: CVE-2021-22543
Id:
CVE-2021-22543
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22543
Comment
: 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.
CVSSv2 Score:
4.6
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSSv3 Score:
7.8
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE:
119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)
References:
https://github.com/google/security-research/security/advisories/GHSA-7wq5-phmq-m584 (MISC)
[oss-security] 20210626 Re: CVE-2021-22543 - /dev/kvm LPE (MLIST)
https://security.netapp.com/advisory/ntap-20210708-0002/ (CONFIRM)
[debian-lts-announce] 20211015 [SECURITY] [DLA 2785-1] linux-4.19 security update (MLIST)
[debian-lts-announce] 20211216 [SECURITY] [DLA 2843-1] linux security update (MLIST)
FEDORA-2021-fe826f202e ()
FEDORA-2021-95f2f1cfc7 ()
VENDOR: RHSA-2021:3057
VENDOR: RHSA-2021:3057
Id:
RHSA-2021:3057
Reference:
https://access.redhat.com/errata/RHSA-2021:3057
VENDOR: RHSA-2021:3088
VENDOR: RHSA-2021:3088
Id:
RHSA-2021:3088
Reference:
https://access.redhat.com/errata/RHSA-2021:3088
VENDOR: RHSA-2021:3044
VENDOR: RHSA-2021:3044
Id:
RHSA-2021:3044
Reference:
https://access.redhat.com/errata/RHSA-2021:3044
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