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Red Hat Enterprise Linux 7.6 Security Update RHSA-2021:1377-01 for kpatch

red hat
Calendar Grey April 27, 2021
Dist Redhat Esm H88
An essential kpatch-patch security enhancement resolves vulnerabilities in CentOS 7.6 impacting system performance and kernel reliability.
An update is now available for Red Hat Enterprise Linux 7.6 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: SCSI target (LIO) write to any block on ILO backstore (CVE-2020-28374)
* kernel: out-of-bounds read in libiscsi module (CVE-2021-27364)
* kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365)
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 fix kernel patch management Red Hat Enterprise important update kpatch

References

https://access.redhat.com/security/cve/CVE-2020-28374 https://access.redhat.com/security/cve/CVE-2021-27364 https://access.redhat.com/security/cve/CVE-2021-27365 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_54_1-1-3.el7.src.rpm kpatch-patch-3_10_0-957_56_1-1-3.el7.src.rpm kpatch-patch-3_10_0-957_58_2-1-3.el7.src.rpm kpatch-patch-3_10_0-957_61_1-1-3.el7.src.rpm kpatch-patch-3_10_0-957_61_2-1-3.el7.src.rpm kpatch-patch-3_10_0-957_62_1-1-3.el7.src.rpm kpatch-patch-3_10_0-957_65_1-1-3.el7.src.rpm kpatch-patch-3_10_0-957_66_1-1-3.el7.src.rpm kpatch-patch-3_10_0-957_70_1-1-2.el7.src.rpm
ppc64le: kpatch-patch-3_10_0-957_54_1-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_54_1-debuginfo-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_56_1-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_56_1-debuginfo-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_58_2-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_58_2-debuginfo-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_61_1-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_61_1-debuginfo-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_61_2-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_61_2-debuginfo-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_62_1-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_62_1-debuginfo-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_65_1-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_65_1-debuginfo-1-3.el7.ppc64le.rpm kpatch-patch-3_10_0-957_66_1-1-3.el7.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:1377-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:1377
Issue date: 2021-04-27

Topic

An update is now available for Red Hat Enterprise Linux 7.6 Extended UpdateSupport.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 fix kernel patch management Red Hat Enterprise important update kpatch

Relevant Releases Architectures

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

Bugs Fixed

1899804 - CVE-2020-28374 kernel: SCSI target (LIO) write to any block on ILO backstore

1930078 - CVE-2021-27365 kernel: heap buffer overflow in the iSCSI subsystem

1930080 - CVE-2021-27364 kernel: out-of-bounds read in libiscsi module

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