RedHat: RHSA-2021-1379:01 Important: kernel-alt security and bug fi...

Advisories

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

Synopsis:          Important: kernel-alt security and bug fix update
Advisory ID:       RHSA-2021:1379-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:1379
Issue date:        2021-04-27
CVE Names:         CVE-2020-11669 CVE-2021-3347 CVE-2021-27364 
                   CVE-2021-27365 
=====================================================================

1. Summary:

An update for kernel-alt is now available for Red Hat Enterprise Linux 7.

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 for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, noarch, ppc64le, s390x
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, noarch, ppc64le

3. Description:

The kernel-alt packages provide the Linux kernel version 4.x.

Security Fix(es):

* kernel: Use after free via PI futex state (CVE-2021-3347)

* kernel: out-of-bounds read in libiscsi module (CVE-2021-27364)

* kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365)

* kernel: powerpc: guest can cause DoS on POWER9 KVM hosts (CVE-2020-11669)

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.

Bug Fix(es):

* Kernel oops when resizing ext4 filesystem [rhel-alt-7.6.z] (BZ#1790900)

* [ipv6][ipsec]:unregister_netdevice: waiting for lo to become free. Usage
count = 4 (BZ#1920805)

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

The system must be rebooted for this update to take effect.

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

1824803 - CVE-2020-11669 kernel: powerpc: guest can cause DoS on POWER9 KVM hosts
1922249 - CVE-2021-3347 kernel: Use after free via PI futex state
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 for ARM and IBM Power LE (POWER9) Server (v. 7):

Source:
kernel-alt-4.14.0-115.36.1.el7a.src.rpm

aarch64:
kernel-4.14.0-115.36.1.el7a.aarch64.rpm
kernel-debug-4.14.0-115.36.1.el7a.aarch64.rpm
kernel-debug-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm
kernel-debug-devel-4.14.0-115.36.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.36.1.el7a.aarch64.rpm
kernel-devel-4.14.0-115.36.1.el7a.aarch64.rpm
kernel-headers-4.14.0-115.36.1.el7a.aarch64.rpm
kernel-tools-4.14.0-115.36.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm
kernel-tools-libs-4.14.0-115.36.1.el7a.aarch64.rpm
perf-4.14.0-115.36.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm
python-perf-4.14.0-115.36.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm

noarch:
kernel-abi-whitelists-4.14.0-115.36.1.el7a.noarch.rpm
kernel-doc-4.14.0-115.36.1.el7a.noarch.rpm

ppc64le:
kernel-4.14.0-115.36.1.el7a.ppc64le.rpm
kernel-bootwrapper-4.14.0-115.36.1.el7a.ppc64le.rpm
kernel-debug-4.14.0-115.36.1.el7a.ppc64le.rpm
kernel-debug-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.36.1.el7a.ppc64le.rpm
kernel-devel-4.14.0-115.36.1.el7a.ppc64le.rpm
kernel-headers-4.14.0-115.36.1.el7a.ppc64le.rpm
kernel-tools-4.14.0-115.36.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm
kernel-tools-libs-4.14.0-115.36.1.el7a.ppc64le.rpm
perf-4.14.0-115.36.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm
python-perf-4.14.0-115.36.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm

s390x:
kernel-4.14.0-115.36.1.el7a.s390x.rpm
kernel-debug-4.14.0-115.36.1.el7a.s390x.rpm
kernel-debug-debuginfo-4.14.0-115.36.1.el7a.s390x.rpm
kernel-debug-devel-4.14.0-115.36.1.el7a.s390x.rpm
kernel-debuginfo-4.14.0-115.36.1.el7a.s390x.rpm
kernel-debuginfo-common-s390x-4.14.0-115.36.1.el7a.s390x.rpm
kernel-devel-4.14.0-115.36.1.el7a.s390x.rpm
kernel-headers-4.14.0-115.36.1.el7a.s390x.rpm
kernel-kdump-4.14.0-115.36.1.el7a.s390x.rpm
kernel-kdump-debuginfo-4.14.0-115.36.1.el7a.s390x.rpm
kernel-kdump-devel-4.14.0-115.36.1.el7a.s390x.rpm
perf-4.14.0-115.36.1.el7a.s390x.rpm
perf-debuginfo-4.14.0-115.36.1.el7a.s390x.rpm
python-perf-4.14.0-115.36.1.el7a.s390x.rpm
python-perf-debuginfo-4.14.0-115.36.1.el7a.s390x.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):

aarch64:
kernel-debug-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.36.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm
kernel-tools-libs-devel-4.14.0-115.36.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm

noarch:
kernel-doc-4.14.0-115.36.1.el7a.noarch.rpm

ppc64le:
kernel-debug-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm
kernel-debug-devel-4.14.0-115.36.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.36.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm
kernel-tools-libs-devel-4.14.0-115.36.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.36.1.el7a.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-2020-11669
https://access.redhat.com/security/cve/CVE-2021-3347
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 . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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RedHat: RHSA-2021-1379:01 Important: kernel-alt security and bug fix update

An update for kernel-alt is now available for Red Hat Enterprise Linux 7

Summary

The kernel-alt packages provide the Linux kernel version 4.x.
Security Fix(es):
* kernel: Use after free via PI futex state (CVE-2021-3347)
* kernel: out-of-bounds read in libiscsi module (CVE-2021-27364)
* kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365)
* kernel: powerpc: guest can cause DoS on POWER9 KVM hosts (CVE-2020-11669)
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.
Bug Fix(es):
* Kernel oops when resizing ext4 filesystem [rhel-alt-7.6.z] (BZ#1790900)
* [ipv6][ipsec]:unregister_netdevice: waiting for lo to become free. Usage count = 4 (BZ#1920805)

Solution

For details on how to apply this update, which includes the changesdescribed in this advisory, refer to:https://access.redhat.com/articles/11258The system must be rebooted for this update to take effect.

References

https://access.redhat.com/security/cve/CVE-2020-11669 https://access.redhat.com/security/cve/CVE-2021-3347 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 for ARM and IBM Power LE (POWER9) Server (v. 7):
Source: kernel-alt-4.14.0-115.36.1.el7a.src.rpm
aarch64: kernel-4.14.0-115.36.1.el7a.aarch64.rpm kernel-debug-4.14.0-115.36.1.el7a.aarch64.rpm kernel-debug-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm kernel-debug-devel-4.14.0-115.36.1.el7a.aarch64.rpm kernel-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm kernel-debuginfo-common-aarch64-4.14.0-115.36.1.el7a.aarch64.rpm kernel-devel-4.14.0-115.36.1.el7a.aarch64.rpm kernel-headers-4.14.0-115.36.1.el7a.aarch64.rpm kernel-tools-4.14.0-115.36.1.el7a.aarch64.rpm kernel-tools-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm kernel-tools-libs-4.14.0-115.36.1.el7a.aarch64.rpm perf-4.14.0-115.36.1.el7a.aarch64.rpm perf-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm python-perf-4.14.0-115.36.1.el7a.aarch64.rpm python-perf-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm
noarch: kernel-abi-whitelists-4.14.0-115.36.1.el7a.noarch.rpm kernel-doc-4.14.0-115.36.1.el7a.noarch.rpm
ppc64le: kernel-4.14.0-115.36.1.el7a.ppc64le.rpm kernel-bootwrapper-4.14.0-115.36.1.el7a.ppc64le.rpm kernel-debug-4.14.0-115.36.1.el7a.ppc64le.rpm kernel-debug-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm kernel-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.14.0-115.36.1.el7a.ppc64le.rpm kernel-devel-4.14.0-115.36.1.el7a.ppc64le.rpm kernel-headers-4.14.0-115.36.1.el7a.ppc64le.rpm kernel-tools-4.14.0-115.36.1.el7a.ppc64le.rpm kernel-tools-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm kernel-tools-libs-4.14.0-115.36.1.el7a.ppc64le.rpm perf-4.14.0-115.36.1.el7a.ppc64le.rpm perf-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm python-perf-4.14.0-115.36.1.el7a.ppc64le.rpm python-perf-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm
s390x: kernel-4.14.0-115.36.1.el7a.s390x.rpm kernel-debug-4.14.0-115.36.1.el7a.s390x.rpm kernel-debug-debuginfo-4.14.0-115.36.1.el7a.s390x.rpm kernel-debug-devel-4.14.0-115.36.1.el7a.s390x.rpm kernel-debuginfo-4.14.0-115.36.1.el7a.s390x.rpm kernel-debuginfo-common-s390x-4.14.0-115.36.1.el7a.s390x.rpm kernel-devel-4.14.0-115.36.1.el7a.s390x.rpm kernel-headers-4.14.0-115.36.1.el7a.s390x.rpm kernel-kdump-4.14.0-115.36.1.el7a.s390x.rpm kernel-kdump-debuginfo-4.14.0-115.36.1.el7a.s390x.rpm kernel-kdump-devel-4.14.0-115.36.1.el7a.s390x.rpm perf-4.14.0-115.36.1.el7a.s390x.rpm perf-debuginfo-4.14.0-115.36.1.el7a.s390x.rpm python-perf-4.14.0-115.36.1.el7a.s390x.rpm python-perf-debuginfo-4.14.0-115.36.1.el7a.s390x.rpm
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):
aarch64: kernel-debug-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm kernel-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm kernel-debuginfo-common-aarch64-4.14.0-115.36.1.el7a.aarch64.rpm kernel-tools-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm kernel-tools-libs-devel-4.14.0-115.36.1.el7a.aarch64.rpm perf-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm python-perf-debuginfo-4.14.0-115.36.1.el7a.aarch64.rpm
noarch: kernel-doc-4.14.0-115.36.1.el7a.noarch.rpm
ppc64le: kernel-debug-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm kernel-debug-devel-4.14.0-115.36.1.el7a.ppc64le.rpm kernel-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.14.0-115.36.1.el7a.ppc64le.rpm kernel-tools-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm kernel-tools-libs-devel-4.14.0-115.36.1.el7a.ppc64le.rpm perf-debuginfo-4.14.0-115.36.1.el7a.ppc64le.rpm python-perf-debuginfo-4.14.0-115.36.1.el7a.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-2021:1379-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:1379
Issued Date: : 2021-04-27
CVE Names: CVE-2020-11669 CVE-2021-3347 CVE-2021-27364 CVE-2021-27365

Topic

An update for kernel-alt is now available for Red Hat Enterprise Linux 7.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 for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, noarch, ppc64le, s390x

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, noarch, ppc64le

Bugs Fixed

1824803 - CVE-2020-11669 kernel: powerpc: guest can cause DoS on POWER9 KVM hosts

1922249 - CVE-2021-3347 kernel: Use after free via PI futex state

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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