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redhatRedHatRHSA-2021:4773
HistoryNov 23, 2021 - 1:25 p.m.

(RHSA-2021:4773) Important: kpatch-patch security update

2021-11-2313:25:36
access.redhat.com
298
rhsa-2021-4773
security update
kernel live patch
use-after-free
drivers/infiniband/core/ucma.c
cve-2020-36385

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

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

47.6%

JSON

This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.

Security Fix(es):

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

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
RedHat7ppc64lekpatch-patch-3_10_0-957_66_1-debuginfo< 1-7.el7kpatch-patch-3_10_0-957_66_1-debuginfo-1-7.el7.ppc64le.rpm
RedHat7x86_64kpatch-patch-3_10_0-957_78_2< 1-3.el7kpatch-patch-3_10_0-957_78_2-1-3.el7.x86_64.rpm
RedHat7x86_64kpatch-patch-3_10_0-957_72_1< 1-4.el7kpatch-patch-3_10_0-957_72_1-1-4.el7.x86_64.rpm
RedHat7ppc64lekpatch-patch-3_10_0-957_76_1< 1-4.el7kpatch-patch-3_10_0-957_76_1-1-4.el7.ppc64le.rpm
RedHat7x86_64kpatch-patch-3_10_0-957_65_1< 1-7.el7kpatch-patch-3_10_0-957_65_1-1-7.el7.x86_64.rpm
RedHat7ppc64lekpatch-patch-3_10_0-957_78_2-debuginfo< 1-3.el7kpatch-patch-3_10_0-957_78_2-debuginfo-1-3.el7.ppc64le.rpm
RedHat7x86_64kpatch-patch-3_10_0-957_65_1-debuginfo< 1-7.el7kpatch-patch-3_10_0-957_65_1-debuginfo-1-7.el7.x86_64.rpm
RedHat7ppc64lekpatch-patch-3_10_0-957_65_1-debuginfo< 1-7.el7kpatch-patch-3_10_0-957_65_1-debuginfo-1-7.el7.ppc64le.rpm
RedHat7ppc64lekpatch-patch-3_10_0-957_72_1-debuginfo< 1-4.el7kpatch-patch-3_10_0-957_72_1-debuginfo-1-4.el7.ppc64le.rpm
RedHat7ppc64lekpatch-patch-3_10_0-957_78_2< 1-3.el7kpatch-patch-3_10_0-957_78_2-1-3.el7.ppc64le.rpm
Rows per page:
1-10 of 321

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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

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

47.6%

JSON
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