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Red Hat Enterprise Linux 8 RHSA-2021:0189-01 Important Buffer Overflow

red hat
Calendar Grey January 19, 2021
Dist Redhat Esm H88
The latest update for CentOS Stream 8 introduces a crucial kernel patch that resolves a critical memory overflow security flaw.
An update is now available for Red Hat Enterprise Linux 8

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: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211)
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 buffer overflow kernel patch kernel security Red Hat Enterprise Linux important security impact important update kpatch-patch

References

https://access.redhat.com/security/cve/CVE-2020-25211 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_13_2-1-6.el8_1.src.rpm kpatch-patch-4_18_0-147_20_1-1-5.el8_1.src.rpm kpatch-patch-4_18_0-147_24_2-1-3.el8_1.src.rpm kpatch-patch-4_18_0-147_27_1-1-3.el8_1.src.rpm kpatch-patch-4_18_0-147_32_1-1-1.el8_1.src.rpm kpatch-patch-4_18_0-147_34_1-1-1.el8_1.src.rpm kpatch-patch-4_18_0-147_5_1-1-10.el8_1.src.rpm kpatch-patch-4_18_0-147_8_1-1-8.el8_1.src.rpm
ppc64le: kpatch-patch-4_18_0-147_13_2-1-6.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_13_2-debuginfo-1-6.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_13_2-debugsource-1-6.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_20_1-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_20_1-debuginfo-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_20_1-debugsource-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_24_2-1-3.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_24_2-debuginfo-1-3.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_24_2-debugsource-1-3.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_27_1-1-3.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_27_1-debuginfo-1-3.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_27_1-debugsource-1-3.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_32_1-1-1.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_32_1-debuginfo-1-1.el8_1.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:0189-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0189
Issue date: 2021-01-19

Topic

An update is now available for Red Hat Enterprise Linux 8.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 buffer overflow kernel patch kernel security Red Hat Enterprise Linux important security impact important update kpatch-patch

Relevant Releases Architectures

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

Bugs Fixed

1877571 - CVE-2020-25211 kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c

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