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Red Hat Enterprise Linux 7.6 RHSA-2022-0533-01 Critical Kpatch Security Fix

red hat
Calendar Grey February 15, 2022
Dist Redhat Esm H88
An essential security patch for CentOS addressing significant vulnerabilities, such as unauthorized access elevation.
An update is now available for Red Hat Enterprise Linux 7.6 Update Services for SAP Solutions

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

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 eventpoll.c may lead to escalation of privilege (CVE-2020-0466)
* kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL (CVE-2021-4155)
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.

Topics%20covered

Topics Covered

security advisory access control kernel patch important red hat enterprise data leak

References

https://access.redhat.com/security/cve/CVE-2020-0466 https://access.redhat.com/security/cve/CVE-2021-4155 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Server E4S (v. 7.6):
Source: kpatch-patch-3_10_0-957_70_1-1-7.el7.src.rpm kpatch-patch-3_10_0-957_72_1-1-5.el7.src.rpm kpatch-patch-3_10_0-957_76_1-1-5.el7.src.rpm kpatch-patch-3_10_0-957_78_2-1-4.el7.src.rpm kpatch-patch-3_10_0-957_80_1-1-3.el7.src.rpm kpatch-patch-3_10_0-957_84_1-1-2.el7.src.rpm kpatch-patch-3_10_0-957_86_1-1-1.el7.src.rpm
ppc64le: kpatch-patch-3_10_0-957_70_1-1-7.el7.ppc64le.rpm kpatch-patch-3_10_0-957_70_1-debuginfo-1-7.el7.ppc64le.rpm kpatch-patch-3_10_0-957_72_1-1-5.el7.ppc64le.rpm kpatch-patch-3_10_0-957_72_1-debuginfo-1-5.el7.ppc64le.rpm kpatch-patch-3_10_0-957_76_1-1-5.el7.ppc64le.rpm kpatch-patch-3_10_0-957_76_1-debuginfo-1-5.el7.ppc64le.rpm kpatch-patch-3_10_0-957_78_2-1-4.el7.ppc64le.rpm kpatch-patch-3_10_0-957_78_2-debuginfo-1-4.el7.ppc64le.rpm kpatch-patch-3_10_0-957_80_1-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_80_1-debuginfo-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_84_1-1-2.el7.ppc64le.rpm kpatch-patch-3_10_0-957_84_1-debuginfo-1-2.el7.ppc64le.rpm kpatch-patch-3_10_0-957_86_1-1-1.el7.ppc64le.rpm kpatch-patch-3_10_0-957_86_1-debuginfo-1-1.el7.ppc64le.rpm
x86_64: kpatch-patch-3_10_0-957_70_1-1-7.el7.x86_64.rpm kpatch-patch-3_10_0-957_70_1-debuginfo-1-7.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:0533-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:0533
Issue date: 2022-02-15

Topic

An update is now available for Red Hat Enterprise Linux 7.6 Update Servicesfor SAP Solutions.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory access control kernel patch important red hat enterprise data leak

Relevant Releases Architectures

Red Hat Enterprise Linux Server E4S (v. 7.6) - ppc64le, x86_64

Bugs Fixed

1920480 - CVE-2020-0466 kernel: use after free in eventpoll.c may lead to escalation of privilege

2034813 - CVE-2021-4155 kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL

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