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RedHat: RHSA-2020-5199-01 Critical Kernel Update for Privilege Escalation

red hat
Calendar Grey November 24, 2020
Dist Redhat Esm H88
Important kernel patch released for CentOS Linux, targeting significant vulnerabilities and improving overall system protection.
An update for kernel is now available for Red Hat Enterprise Linux 8.0 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

The system must be rebooted for this update to take effect.

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
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 memory corruption kernel red hat enterprise elevation of privilege XFS SAP solutions

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 E4S (v. 8.0):
Source: kernel-4.18.0-80.31.1.el8_0.src.rpm
aarch64: bpftool-4.18.0-80.31.1.el8_0.aarch64.rpm bpftool-debuginfo-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-core-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-cross-headers-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-debug-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-debug-core-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-debug-debuginfo-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-debug-devel-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-debug-modules-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-debug-modules-extra-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-debuginfo-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-devel-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-headers-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-modules-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-modules-extra-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-tools-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-tools-debuginfo-4.18.0-80.31.1.el8_0.aarch64.rpm kernel-tools-libs-4.18.0-80.31.1.el8_0.aarch64.rpm perf-4.18.0-80.31.1.el8_0.aarch64.rpm perf-debuginfo-4.18.0-80.31.1.el8_0.aarch64.rpm python3-perf-4.18.0-80.31.1.el8_0.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:5199-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:5199
Issue date: 2020-11-24

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.0Update Services for 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 memory corruption kernel red hat enterprise elevation of privilege XFS SAP solutions

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS E4S (v. 8.0) - aarch64, noarch, ppc64le, s390x, 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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