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Red Hat Enterprise Linux 7.6 RHSA-2021-4773 Important: Kernel Patch Update

red hat
Calendar Grey November 23, 2021
Scroller Redhat Esm H88
Critical security patch released for CentOS 7.6 to resolve kernel vulnerabilities assessed as High severity. Find more information.
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 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.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux patch security impact kernel issue use-after-free update services

References

https://access.redhat.com/security/cve/CVE-2020-36385 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_65_1-1-7.el7.src.rpm kpatch-patch-3_10_0-957_66_1-1-7.el7.src.rpm kpatch-patch-3_10_0-957_70_1-1-6.el7.src.rpm kpatch-patch-3_10_0-957_72_1-1-4.el7.src.rpm kpatch-patch-3_10_0-957_76_1-1-4.el7.src.rpm kpatch-patch-3_10_0-957_78_2-1-3.el7.src.rpm kpatch-patch-3_10_0-957_80_1-1-2.el7.src.rpm kpatch-patch-3_10_0-957_84_1-1-1.el7.src.rpm
ppc64le: kpatch-patch-3_10_0-957_65_1-1-7.el7.ppc64le.rpm kpatch-patch-3_10_0-957_65_1-debuginfo-1-7.el7.ppc64le.rpm kpatch-patch-3_10_0-957_66_1-1-7.el7.ppc64le.rpm kpatch-patch-3_10_0-957_66_1-debuginfo-1-7.el7.ppc64le.rpm kpatch-patch-3_10_0-957_70_1-1-6.el7.ppc64le.rpm kpatch-patch-3_10_0-957_70_1-debuginfo-1-6.el7.ppc64le.rpm kpatch-patch-3_10_0-957_72_1-1-4.el7.ppc64le.rpm kpatch-patch-3_10_0-957_72_1-debuginfo-1-4.el7.ppc64le.rpm kpatch-patch-3_10_0-957_76_1-1-4.el7.ppc64le.rpm kpatch-patch-3_10_0-957_76_1-debuginfo-1-4.el7.ppc64le.rpm kpatch-patch-3_10_0-957_78_2-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_78_2-debuginfo-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_80_1-1-2.el7.ppc64le.rpm kpatch-patch-3_10_0-957_80_1-debuginfo-1-2.el7.ppc64le.rpm kpatch-patch-3_10_0-957_84_1-1-1.el7.ppc64le.rpm kpatch-patch-3_10_0-957_84_1-debuginfo-1-1.el7.ppc64le.rpm


Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:4773-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4773
Issue date: 2021-11-23

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 Red Hat Enterprise Linux patch security impact kernel issue use-after-free update services

Relevant Releases Architectures

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

Bugs Fixed

1974319 - CVE-2020-36385 kernel: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free

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