RedHat: RHSA-2021-3399:01 Important: kernel security and bug fix up...

Advisories

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

Synopsis:          Important: kernel security and bug fix update
Advisory ID:       RHSA-2021:3399-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:3399
Issue date:        2021-08-31
CVE Names:         CVE-2021-3347 CVE-2021-22555 CVE-2021-32399 
=====================================================================

1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 7.2
Advanced 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 AUS (v. 7.2) - noarch, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.2) - x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security Fix(es):

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

* kernel: out-of-bounds write in xt_compat_target_from_user() in
net/netfilter/x_tables.c (CVE-2021-22555)

* kernel: race condition for removal of the HCI controller (CVE-2021-32399)

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):

* [CKI kernel builds]: x86 binaries in non-x86 kernel rpms breaks systemtap
[7.9.z] (BZ#1975163)

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/):

1922249 - CVE-2021-3347 kernel: Use after free via PI futex state
1970807 - CVE-2021-32399 kernel: race condition for removal of the HCI controller
1980101 - CVE-2021-22555 kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c

6. Package List:

Red Hat Enterprise Linux Server AUS (v. 7.2):

Source:
kernel-3.10.0-327.100.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-327.100.1.el7.noarch.rpm
kernel-doc-3.10.0-327.100.1.el7.noarch.rpm

x86_64:
kernel-3.10.0-327.100.1.el7.x86_64.rpm
kernel-debug-3.10.0-327.100.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.100.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.100.1.el7.x86_64.rpm
kernel-devel-3.10.0-327.100.1.el7.x86_64.rpm
kernel-headers-3.10.0-327.100.1.el7.x86_64.rpm
kernel-tools-3.10.0-327.100.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.100.1.el7.x86_64.rpm
perf-3.10.0-327.100.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm
python-perf-3.10.0-327.100.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 7.2):

x86_64:
kernel-debug-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.100.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.100.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.100.1.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-2021-3347
https://access.redhat.com/security/cve/CVE-2021-22555
https://access.redhat.com/security/cve/CVE-2021-32399
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-2021-3399:01 Important: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 7.2 Advanced Update Support

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: Use after free via PI futex state (CVE-2021-3347)
* kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555)
* kernel: race condition for removal of the HCI controller (CVE-2021-32399)
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):
* [CKI kernel builds]: x86 binaries in non-x86 kernel rpms breaks systemtap [7.9.z] (BZ#1975163)

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-2021-3347 https://access.redhat.com/security/cve/CVE-2021-22555 https://access.redhat.com/security/cve/CVE-2021-32399 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Server AUS (v. 7.2):
Source: kernel-3.10.0-327.100.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-327.100.1.el7.noarch.rpm kernel-doc-3.10.0-327.100.1.el7.noarch.rpm
x86_64: kernel-3.10.0-327.100.1.el7.x86_64.rpm kernel-debug-3.10.0-327.100.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.100.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.100.1.el7.x86_64.rpm kernel-devel-3.10.0-327.100.1.el7.x86_64.rpm kernel-headers-3.10.0-327.100.1.el7.x86_64.rpm kernel-tools-3.10.0-327.100.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.100.1.el7.x86_64.rpm perf-3.10.0-327.100.1.el7.x86_64.rpm perf-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm python-perf-3.10.0-327.100.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 7.2):
x86_64: kernel-debug-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.100.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.100.1.el7.x86_64.rpm perf-debuginfo-3.10.0-327.100.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.100.1.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/

Severity
Advisory ID: RHSA-2021:3399-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3399
Issued Date: : 2021-08-31
CVE Names: CVE-2021-3347 CVE-2021-22555 CVE-2021-32399

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.2Advanced Update Support.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 Server AUS (v. 7.2) - noarch, x86_64

Red Hat Enterprise Linux Server Optional AUS (v. 7.2) - x86_64

Bugs Fixed

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

1970807 - CVE-2021-32399 kernel: race condition for removal of the HCI controller

1980101 - CVE-2021-22555 kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c

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