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Red Hat Enterprise Linux 8.1 RHSA-2020:4332-01 Kpatch Kernel Updates

red hat
Calendar Grey October 26, 2020
Dist Redhat Esm H88
Red Hat Enterprise Linux 8.1 features a critical kpatch-patch security update addressing vulnerabilities in kernel memory management and XFS filesystem.
An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.1 Extended Update Support

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: metadata validator in XFS may cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt (CVE-2020-14385)
* kernel: memory corruption in net/packet/af_packet.c leads to elevation of privilege (CVE-2020-14386)
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 security update memory corruption important kernel elevation of privilege XFS

References

https://access.redhat.com/security/cve/CVE-2020-14385 https://access.redhat.com/security/cve/CVE-2020-14386 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS EUS (v. 8.1):
Source: kpatch-patch-4_18_0-147-1-18.el8.src.rpm kpatch-patch-4_18_0-147_0_2-1-14.el8.src.rpm kpatch-patch-4_18_0-147_0_3-1-14.el8.src.rpm kpatch-patch-4_18_0-147_13_2-1-5.el8_1.src.rpm kpatch-patch-4_18_0-147_20_1-1-4.el8_1.src.rpm kpatch-patch-4_18_0-147_24_2-1-2.el8_1.src.rpm kpatch-patch-4_18_0-147_27_1-1-2.el8_1.src.rpm kpatch-patch-4_18_0-147_3_1-1-14.el8_1.src.rpm kpatch-patch-4_18_0-147_5_1-1-9.el8_1.src.rpm kpatch-patch-4_18_0-147_8_1-1-7.el8_1.src.rpm
ppc64le: kpatch-patch-4_18_0-147-1-18.el8.ppc64le.rpm kpatch-patch-4_18_0-147-debuginfo-1-18.el8.ppc64le.rpm kpatch-patch-4_18_0-147-debugsource-1-18.el8.ppc64le.rpm kpatch-patch-4_18_0-147_0_2-1-14.el8.ppc64le.rpm kpatch-patch-4_18_0-147_0_2-debuginfo-1-14.el8.ppc64le.rpm kpatch-patch-4_18_0-147_0_2-debugsource-1-14.el8.ppc64le.rpm kpatch-patch-4_18_0-147_0_3-1-14.el8.ppc64le.rpm kpatch-patch-4_18_0-147_13_2-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_13_2-debuginfo-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_13_2-debugsource-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_20_1-1-4.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_20_1-debuginfo-1-4.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_20_1-debugsource-1-4.el8_1.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:4332-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4332
Issue date: 2020-10-26

Topic

An update for kpatch-patch is now available for Red Hat Enterprise Linux8.1 Extended Update Support.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 security update memory corruption important kernel elevation of privilege XFS

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS EUS (v. 8.1) - ppc64le, x86_64

Bugs Fixed

1874800 - CVE-2020-14385 kernel: metadata validator in XFS may cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt

1875699 - CVE-2020-14386 kernel: memory corruption in net/packet/af_packet.c leads to elevation of privilege

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