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

Synopsis:          Moderate: kernel-alt security and bug fix update
Advisory ID:       RHSA-2020:5079-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:5079
Issue date:        2020-11-10
CVE Names:         CVE-2020-25641 
====================================================================
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 Moderate. 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: soft-lockups in iov_iter_copy_from_user_atomic() could result in
DoS (CVE-2020-25641)

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):

* RHEL-Alt-7.6 - kernel "Oops: Kernel access of bad area" in
crypto_unregister_instance while running LTP testcase crypto_user02
(BZ#1882230)

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/):

1881424 - CVE-2020-25641 kernel: soft-lockups in iov_iter_copy_from_user_atomic() could result in DoS

6. Package List:

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

Source:
kernel-alt-4.14.0-115.33.1.el7a.src.rpm

aarch64:
kernel-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-debug-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-debug-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-debug-devel-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-devel-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-headers-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-tools-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-tools-libs-4.14.0-115.33.1.el7a.aarch64.rpm
perf-4.14.0-115.33.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
python-perf-4.14.0-115.33.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm

noarch:
kernel-abi-whitelists-4.14.0-115.33.1.el7a.noarch.rpm
kernel-doc-4.14.0-115.33.1.el7a.noarch.rpm

ppc64le:
kernel-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-bootwrapper-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-debug-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-debug-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-devel-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-headers-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-tools-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-tools-libs-4.14.0-115.33.1.el7a.ppc64le.rpm
perf-4.14.0-115.33.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
python-perf-4.14.0-115.33.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm

s390x:
kernel-4.14.0-115.33.1.el7a.s390x.rpm
kernel-debug-4.14.0-115.33.1.el7a.s390x.rpm
kernel-debug-debuginfo-4.14.0-115.33.1.el7a.s390x.rpm
kernel-debug-devel-4.14.0-115.33.1.el7a.s390x.rpm
kernel-debuginfo-4.14.0-115.33.1.el7a.s390x.rpm
kernel-debuginfo-common-s390x-4.14.0-115.33.1.el7a.s390x.rpm
kernel-devel-4.14.0-115.33.1.el7a.s390x.rpm
kernel-headers-4.14.0-115.33.1.el7a.s390x.rpm
kernel-kdump-4.14.0-115.33.1.el7a.s390x.rpm
kernel-kdump-debuginfo-4.14.0-115.33.1.el7a.s390x.rpm
kernel-kdump-devel-4.14.0-115.33.1.el7a.s390x.rpm
perf-4.14.0-115.33.1.el7a.s390x.rpm
perf-debuginfo-4.14.0-115.33.1.el7a.s390x.rpm
python-perf-4.14.0-115.33.1.el7a.s390x.rpm
python-perf-debuginfo-4.14.0-115.33.1.el7a.s390x.rpm

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

aarch64:
kernel-debug-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
kernel-tools-libs-devel-4.14.0-115.33.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm

noarch:
kernel-doc-4.14.0-115.33.1.el7a.noarch.rpm

ppc64le:
kernel-debug-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-debug-devel-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
kernel-tools-libs-devel-4.14.0-115.33.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.33.1.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-2020-25641
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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RedHat: RHSA-2020-5079:01 Moderate: 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: soft-lockups in iov_iter_copy_from_user_atomic() could result in DoS (CVE-2020-25641)
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):
* RHEL-Alt-7.6 - kernel "Oops: Kernel access of bad area" in crypto_unregister_instance while running LTP testcase crypto_user02 (BZ#1882230)



Summary


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.

References

https://access.redhat.com/security/cve/CVE-2020-25641 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):
Source: kernel-alt-4.14.0-115.33.1.el7a.src.rpm
aarch64: kernel-4.14.0-115.33.1.el7a.aarch64.rpm kernel-debug-4.14.0-115.33.1.el7a.aarch64.rpm kernel-debug-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm kernel-debug-devel-4.14.0-115.33.1.el7a.aarch64.rpm kernel-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm kernel-debuginfo-common-aarch64-4.14.0-115.33.1.el7a.aarch64.rpm kernel-devel-4.14.0-115.33.1.el7a.aarch64.rpm kernel-headers-4.14.0-115.33.1.el7a.aarch64.rpm kernel-tools-4.14.0-115.33.1.el7a.aarch64.rpm kernel-tools-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm kernel-tools-libs-4.14.0-115.33.1.el7a.aarch64.rpm perf-4.14.0-115.33.1.el7a.aarch64.rpm perf-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm python-perf-4.14.0-115.33.1.el7a.aarch64.rpm python-perf-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
noarch: kernel-abi-whitelists-4.14.0-115.33.1.el7a.noarch.rpm kernel-doc-4.14.0-115.33.1.el7a.noarch.rpm
ppc64le: kernel-4.14.0-115.33.1.el7a.ppc64le.rpm kernel-bootwrapper-4.14.0-115.33.1.el7a.ppc64le.rpm kernel-debug-4.14.0-115.33.1.el7a.ppc64le.rpm kernel-debug-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm kernel-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.14.0-115.33.1.el7a.ppc64le.rpm kernel-devel-4.14.0-115.33.1.el7a.ppc64le.rpm kernel-headers-4.14.0-115.33.1.el7a.ppc64le.rpm kernel-tools-4.14.0-115.33.1.el7a.ppc64le.rpm kernel-tools-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm kernel-tools-libs-4.14.0-115.33.1.el7a.ppc64le.rpm perf-4.14.0-115.33.1.el7a.ppc64le.rpm perf-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm python-perf-4.14.0-115.33.1.el7a.ppc64le.rpm python-perf-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm
s390x: kernel-4.14.0-115.33.1.el7a.s390x.rpm kernel-debug-4.14.0-115.33.1.el7a.s390x.rpm kernel-debug-debuginfo-4.14.0-115.33.1.el7a.s390x.rpm kernel-debug-devel-4.14.0-115.33.1.el7a.s390x.rpm kernel-debuginfo-4.14.0-115.33.1.el7a.s390x.rpm kernel-debuginfo-common-s390x-4.14.0-115.33.1.el7a.s390x.rpm kernel-devel-4.14.0-115.33.1.el7a.s390x.rpm kernel-headers-4.14.0-115.33.1.el7a.s390x.rpm kernel-kdump-4.14.0-115.33.1.el7a.s390x.rpm kernel-kdump-debuginfo-4.14.0-115.33.1.el7a.s390x.rpm kernel-kdump-devel-4.14.0-115.33.1.el7a.s390x.rpm perf-4.14.0-115.33.1.el7a.s390x.rpm perf-debuginfo-4.14.0-115.33.1.el7a.s390x.rpm python-perf-4.14.0-115.33.1.el7a.s390x.rpm python-perf-debuginfo-4.14.0-115.33.1.el7a.s390x.rpm
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):
aarch64: kernel-debug-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm kernel-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm kernel-debuginfo-common-aarch64-4.14.0-115.33.1.el7a.aarch64.rpm kernel-tools-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm kernel-tools-libs-devel-4.14.0-115.33.1.el7a.aarch64.rpm perf-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm python-perf-debuginfo-4.14.0-115.33.1.el7a.aarch64.rpm
noarch: kernel-doc-4.14.0-115.33.1.el7a.noarch.rpm
ppc64le: kernel-debug-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm kernel-debug-devel-4.14.0-115.33.1.el7a.ppc64le.rpm kernel-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.14.0-115.33.1.el7a.ppc64le.rpm kernel-tools-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm kernel-tools-libs-devel-4.14.0-115.33.1.el7a.ppc64le.rpm perf-debuginfo-4.14.0-115.33.1.el7a.ppc64le.rpm python-perf-debuginfo-4.14.0-115.33.1.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-2020:5079-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:5079
Issued Date: : 2020-11-10
CVE Names: CVE-2020-25641

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 Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.


Topic


 

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

1881424 - CVE-2020-25641 kernel: soft-lockups in iov_iter_copy_from_user_atomic() could result in DoS


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