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redhatRedHatRHSA-2021:4692
HistoryNov 16, 2021 - 10:29 a.m.

(RHSA-2021:4692) Important: kernel security update

2021-11-1610:29:46
access.redhat.com
25
kernel
security update
cve-2020-36385
cve-2021-3653
infiniband
kvm
avic support

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

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

EPSS

0.001

Percentile

48.1%

JSON

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

  • kernel: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free (CVE-2020-36385)

  • kernel: SVM nested virtualization issue in KVM (AVIC support) (CVE-2021-3653)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

OSVersionArchitecturePackageVersionFilename
RedHat7x86_64kernel-tools-debuginfo< 3.10.0-693.95.1.el7kernel-tools-debuginfo-3.10.0-693.95.1.el7.x86_64.rpm
RedHat7x86_64kernel-debug-devel< 3.10.0-693.95.1.el7kernel-debug-devel-3.10.0-693.95.1.el7.x86_64.rpm
RedHat7x86_64perf< 3.10.0-693.95.1.el7perf-3.10.0-693.95.1.el7.x86_64.rpm
RedHat7x86_64kernel-headers< 3.10.0-693.95.1.el7kernel-headers-3.10.0-693.95.1.el7.x86_64.rpm
RedHat7x86_64kernel< 3.10.0-693.95.1.el7kernel-3.10.0-693.95.1.el7.x86_64.rpm
RedHat7x86_64kernel-tools-libs< 3.10.0-693.95.1.el7kernel-tools-libs-3.10.0-693.95.1.el7.x86_64.rpm
RedHat7x86_64kernel-debuginfo< 3.10.0-693.95.1.el7kernel-debuginfo-3.10.0-693.95.1.el7.x86_64.rpm
RedHat7noarchkernel-abi-whitelists< 3.10.0-693.95.1.el7kernel-abi-whitelists-3.10.0-693.95.1.el7.noarch.rpm
RedHat7x86_64kernel-debuginfo-common-x86_64< 3.10.0-693.95.1.el7kernel-debuginfo-common-x86_64-3.10.0-693.95.1.el7.x86_64.rpm
RedHat7x86_64kernel-tools-libs-devel< 3.10.0-693.95.1.el7kernel-tools-libs-devel-3.10.0-693.95.1.el7.x86_64.rpm
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CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

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

EPSS

0.001

Percentile

48.1%

JSON
Related for RHSA-2021:4692
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