RedHat: RHSA-2021-3436:01 Important: kpatch-patch security update |...

Advisories

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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: kpatch-patch security update
Advisory ID:       RHSA-2021:3436-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:3436
Issue date:        2021-09-07
CVE Names:         CVE-2021-37576 
=====================================================================

1. Summary:

An update is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux BaseOS (v. 8) - ppc64le

3. Description:

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: powerpc: KVM guest OS users can cause host OS memory corruption
(CVE-2021-37576)

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.

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

1986506 - CVE-2021-37576 kernel: powerpc: KVM guest OS users can cause host OS memory corruption

6. Package List:

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
kpatch-patch-4_18_0-305-1-5.el8.src.rpm
kpatch-patch-4_18_0-305_10_2-1-2.el8_4.src.rpm
kpatch-patch-4_18_0-305_12_1-1-1.el8_4.src.rpm
kpatch-patch-4_18_0-305_3_1-1-4.el8_4.src.rpm
kpatch-patch-4_18_0-305_7_1-1-3.el8_4.src.rpm

ppc64le:
kpatch-patch-4_18_0-305-1-5.el8.ppc64le.rpm
kpatch-patch-4_18_0-305-debuginfo-1-5.el8.ppc64le.rpm
kpatch-patch-4_18_0-305-debugsource-1-5.el8.ppc64le.rpm
kpatch-patch-4_18_0-305_10_2-1-2.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_10_2-debuginfo-1-2.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_10_2-debugsource-1-2.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_12_1-1-1.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_12_1-debuginfo-1-1.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_12_1-debugsource-1-1.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_3_1-1-4.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_3_1-debuginfo-1-4.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_3_1-debugsource-1-4.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_7_1-1-3.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_7_1-debuginfo-1-3.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_7_1-debugsource-1-3.el8_4.ppc64le.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2021-37576
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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RedHat: RHSA-2021-3436:01 Important: kpatch-patch security update

An update is now available for Red Hat Enterprise Linux 8

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: powerpc: KVM guest OS users can cause host OS memory corruption (CVE-2021-37576)
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.

Solution

For details on how to apply this update, which includes the changesdescribed in this advisory, refer to:https://access.redhat.com/articles/11258

References

https://access.redhat.com/security/cve/CVE-2021-37576 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: kpatch-patch-4_18_0-305-1-5.el8.src.rpm kpatch-patch-4_18_0-305_10_2-1-2.el8_4.src.rpm kpatch-patch-4_18_0-305_12_1-1-1.el8_4.src.rpm kpatch-patch-4_18_0-305_3_1-1-4.el8_4.src.rpm kpatch-patch-4_18_0-305_7_1-1-3.el8_4.src.rpm
ppc64le: kpatch-patch-4_18_0-305-1-5.el8.ppc64le.rpm kpatch-patch-4_18_0-305-debuginfo-1-5.el8.ppc64le.rpm kpatch-patch-4_18_0-305-debugsource-1-5.el8.ppc64le.rpm kpatch-patch-4_18_0-305_10_2-1-2.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_10_2-debuginfo-1-2.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_10_2-debugsource-1-2.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_12_1-1-1.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_12_1-debuginfo-1-1.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_12_1-debugsource-1-1.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_3_1-1-4.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_3_1-debuginfo-1-4.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_3_1-debugsource-1-4.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_7_1-1-3.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_7_1-debuginfo-1-3.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_7_1-debugsource-1-3.el8_4.ppc64le.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/

Severity
Advisory ID: RHSA-2021:3436-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3436
Issued Date: : 2021-09-07
CVE Names: CVE-2021-37576

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.

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS (v. 8) - ppc64le

Bugs Fixed

1986506 - CVE-2021-37576 kernel: powerpc: KVM guest OS users can cause host OS memory corruption

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