Alerts This Week
Warning Icon 1 727
Alerts This Week
Warning Icon 1 727

Red Hat: RHSA-2022-0531-01 Important: Kernel Escalation Threat

red hat
Calendar Grey February 15, 2022
Dist Redhat Esm H88
Uncover the pivotal kernel security patch from Red Hat addressing privilege escalation and information breaches, accompanied by vital instructions.
An update for kernel is now available for Red Hat Enterprise Linux 7.6 Advanced Update Support, Red Hat Enterprise Linux 7.6 Telco Extended Update Support, and Red Hat Enterprise L...

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: 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 Red Hat important kernel permissions escalation XFS

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 AUS (v. 7.6):
Source: kernel-3.10.0-957.88.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-957.88.1.el7.noarch.rpm kernel-doc-3.10.0-957.88.1.el7.noarch.rpm
x86_64: bpftool-3.10.0-957.88.1.el7.x86_64.rpm kernel-3.10.0-957.88.1.el7.x86_64.rpm kernel-debug-3.10.0-957.88.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-957.88.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-957.88.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.88.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.88.1.el7.x86_64.rpm kernel-devel-3.10.0-957.88.1.el7.x86_64.rpm kernel-headers-3.10.0-957.88.1.el7.x86_64.rpm kernel-tools-3.10.0-957.88.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.88.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-957.88.1.el7.x86_64.rpm perf-3.10.0-957.88.1.el7.x86_64.rpm perf-debuginfo-3.10.0-957.88.1.el7.x86_64.rpm python-perf-3.10.0-957.88.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.88.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server E4S (v. 7.6):
Source: kernel-3.10.0-957.88.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-957.88.1.el7.noarch.rpm kernel-doc-3.10.0-957.88.1.el7.noarch.rpm
ppc64le: kernel-3.10.0-957.88.1.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-957.88.1.el7.ppc64le.rpm kernel-debug-3.10.0-957.88.1.el7.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:0531-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:0531
Issue date: 2022-02-15

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.6Advanced Update Support, Red Hat Enterprise Linux 7.6 Telco Extended UpdateSupport, and Red Hat Enterprise Linux 7.6 Update Services for SAPSolutions.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 important kernel permissions escalation XFS

Relevant Releases Architectures

Red Hat Enterprise Linux Server AUS (v. 7.6) - noarch, x86_64

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

Red Hat Enterprise Linux Server Optional AUS (v. 7.6) - x86_64

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

Red Hat Enterprise Linux Server Optional TUS (v. 7.6) - x86_64

Red Hat Enterprise Linux Server TUS (v. 7.6) - noarch, 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

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here