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RedHat: RHSA-2019-4171-01 Important: Kernel Buffer Overflow Fix

red hat
Calendar Grey December 10, 2019
Dist Redhat Esm H88
Red Hat has issued a significant kpatch security update for RHEL 7.6, rectifying a severe buffer overflow vulnerability.
An update for kpatch-patch is now available for Red Hat Enterprise Linux 7.6 Extended Update Support

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

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:
* kernel: brcmfmac heap buffer overflow in brcmf_wowl_nd_results (CVE-2019-9500)
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 buffer overflow security fix important kernel red hat enterprise kpatch-patch

References

https://access.redhat.com/security/cve/CVE-2019-9500 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Server EUS (v. 7.6):
Source: kpatch-patch-3_10_0-957_35_1-1-3.el7.src.rpm kpatch-patch-3_10_0-957_35_2-1-2.el7.src.rpm kpatch-patch-3_10_0-957_38_1-1-1.el7.src.rpm kpatch-patch-3_10_0-957_38_2-1-1.el7.src.rpm kpatch-patch-3_10_0-957_38_3-1-1.el7.src.rpm
ppc64le: kpatch-patch-3_10_0-957_35_1-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_35_1-debuginfo-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_35_2-1-2.el7.ppc64le.rpm kpatch-patch-3_10_0-957_35_2-debuginfo-1-2.el7.ppc64le.rpm kpatch-patch-3_10_0-957_38_1-1-1.el7.ppc64le.rpm kpatch-patch-3_10_0-957_38_1-debuginfo-1-1.el7.ppc64le.rpm kpatch-patch-3_10_0-957_38_2-1-1.el7.ppc64le.rpm kpatch-patch-3_10_0-957_38_2-debuginfo-1-1.el7.ppc64le.rpm kpatch-patch-3_10_0-957_38_3-1-1.el7.ppc64le.rpm kpatch-patch-3_10_0-957_38_3-debuginfo-1-1.el7.ppc64le.rpm
x86_64: kpatch-patch-3_10_0-957_35_1-1-3.el7.x86_64.rpm kpatch-patch-3_10_0-957_35_1-debuginfo-1-3.el7.x86_64.rpm kpatch-patch-3_10_0-957_35_2-1-2.el7.x86_64.rpm kpatch-patch-3_10_0-957_35_2-debuginfo-1-2.el7.x86_64.rpm kpatch-patch-3_10_0-957_38_1-1-1.el7.x86_64.rpm kpatch-patch-3_10_0-957_38_1-debuginfo-1-1.el7.x86_64.rpm kpatch-patch-3_10_0-957_38_2-1-1.el7.x86_64.rpm kpatch-patch-3_10_0-957_38_2-debuginfo-1-1.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:4171-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:4171
Issue date: 2019-12-10

Topic

An update for kpatch-patch is now available for Red Hat Enterprise Linux7.6 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 buffer overflow security fix important kernel red hat enterprise kpatch-patch

Relevant Releases Architectures

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

Bugs Fixed

1701224 - CVE-2019-9500 kernel: brcmfmac heap buffer overflow in brcmf_wowl_nd_results

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