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Red Hat Security Advisory 2021-1532-01

Red Hat Security Advisory 2021-1532-01
Posted May 11, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1532-01 - 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. Issues addressed include buffer overflow and out of bounds read vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-28374, CVE-2021-27364, CVE-2021-27365
SHA-256 | cc0928aecacd4f75257d1b212857779f7fe134f09ee2bbadde9f2cc482bdcdae

Red Hat Security Advisory 2021-1532-01

Change Mirror Download
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====================================================================
Red Hat Security Advisory

Synopsis: Important: kpatch-patch security update
Advisory ID: RHSA-2021:1532-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:1532
Issue date: 2021-05-11
CVE Names: CVE-2020-28374 CVE-2021-27364 CVE-2021-27365
====================================================================
1. Summary:

An update is now available for Red Hat Enterprise Linux 7.7 Extended Update
Support.

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 Server EUS (v. 7.7) - ppc64le, x86_64

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: 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.

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/):

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

6. Package List:

Red Hat Enterprise Linux Server EUS (v. 7.7):

Source:
kpatch-patch-3_10_0-1062_26_1-1-3.el7.src.rpm
kpatch-patch-3_10_0-1062_30_1-1-3.el7.src.rpm
kpatch-patch-3_10_0-1062_31_2-1-3.el7.src.rpm
kpatch-patch-3_10_0-1062_31_3-1-3.el7.src.rpm
kpatch-patch-3_10_0-1062_33_1-1-3.el7.src.rpm
kpatch-patch-3_10_0-1062_36_1-1-3.el7.src.rpm
kpatch-patch-3_10_0-1062_37_1-1-3.el7.src.rpm
kpatch-patch-3_10_0-1062_40_1-1-3.el7.src.rpm
kpatch-patch-3_10_0-1062_43_1-1-3.el7.src.rpm
kpatch-patch-3_10_0-1062_45_1-1-3.el7.src.rpm
kpatch-patch-3_10_0-1062_46_1-1-2.el7.src.rpm

ppc64le:
kpatch-patch-3_10_0-1062_26_1-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_26_1-debuginfo-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_30_1-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_30_1-debuginfo-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_31_2-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_31_2-debuginfo-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_31_3-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_31_3-debuginfo-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_33_1-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_33_1-debuginfo-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_36_1-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_36_1-debuginfo-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_37_1-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_37_1-debuginfo-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_40_1-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_40_1-debuginfo-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_43_1-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_43_1-debuginfo-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_45_1-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_45_1-debuginfo-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_46_1-1-2.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_46_1-debuginfo-1-2.el7.ppc64le.rpm

x86_64:
kpatch-patch-3_10_0-1062_26_1-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_26_1-debuginfo-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_30_1-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_30_1-debuginfo-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_31_2-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_31_2-debuginfo-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_31_3-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_31_3-debuginfo-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_33_1-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_33_1-debuginfo-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_36_1-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_36_1-debuginfo-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_37_1-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_37_1-debuginfo-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_40_1-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_40_1-debuginfo-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_43_1-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_43_1-debuginfo-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_45_1-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_45_1-debuginfo-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_46_1-1-2.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_46_1-debuginfo-1-2.el7.x86_64.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-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

8. Contact:

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

Copyright 2021 Red Hat, Inc.
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