RedHat: RHSA-2021-3477:01 Important: RHV-H security update | LinuxS...

Advisories

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                   Red Hat Security Advisory

Synopsis:          Important: RHV-H security update (redhat-virtualization-host) 4.3.18
Advisory ID:       RHSA-2021:3477-01
Product:           Red Hat Virtualization
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:3477
Issue date:        2021-09-09
CVE Names:         CVE-2021-3621 CVE-2021-3715 CVE-2021-22555 
                   CVE-2021-31535 CVE-2021-32399 
=====================================================================

1. Summary:

An update for redhat-release-virtualization-host and
redhat-virtualization-host is now available for Red Hat Virtualization 4
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:

RHEL 7-based RHEV-H for RHEV 4 (build requirements) - noarch, x86_64
Red Hat Virtualization 4 Hypervisor for RHEL 7 - noarch

3. Description:

The redhat-virtualization-host packages provide the Red Hat Virtualization
Host.
These packages include redhat-release-virtualization-host. Red Hat
Virtualization Hosts (RHVH) are installed using a special build of Red Hat
Enterprise Linux with only the packages required to host virtual machines.
RHVH features a Cockpit user interface for monitoring the host's resources
and
performing administrative tasks.

Security Fix(es):

* sssd: shell command injection in sssctl (CVE-2021-3621)

* kernel: use-after-free in route4_change() in net/sched/cls_route.c
(CVE-2021-3715)

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

* libX11: missing request length checks (CVE-2021-31535)

* 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.

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/2974891

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

1961822 - CVE-2021-31535 libX11: missing request length checks
1970807 - CVE-2021-32399 kernel: race condition for removal of the HCI controller
1975142 - CVE-2021-3621 sssd: shell command injection in sssctl
1980101 - CVE-2021-22555 kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c
1993988 - CVE-2021-3715 kernel: use-after-free in route4_change() in net/sched/cls_route.c

6. Package List:

Red Hat Virtualization 4 Hypervisor for RHEL 7:

Source:
redhat-virtualization-host-4.3.18-20210903.0.el7_9.src.rpm

noarch:
redhat-virtualization-host-image-update-4.3.18-20210903.0.el7_9.noarch.rpm

RHEL 7-based RHEV-H for RHEV 4 (build requirements):

Source:
redhat-release-virtualization-host-4.3.18-1.el7ev.src.rpm
redhat-virtualization-host-4.3.18-20210903.0.el7_9.src.rpm

noarch:
redhat-virtualization-host-image-update-4.3.18-20210903.0.el7_9.noarch.rpm
redhat-virtualization-host-image-update-placeholder-4.3.18-1.el7ev.noarch.rpm

x86_64:
redhat-release-virtualization-host-4.3.18-1.el7ev.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-2021-3621
https://access.redhat.com/security/cve/CVE-2021-3715
https://access.redhat.com/security/cve/CVE-2021-22555
https://access.redhat.com/security/cve/CVE-2021-31535
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-2021-3477:01 Important: RHV-H security update

An update for redhat-release-virtualization-host and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 7

Summary

The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks.
Security Fix(es):
* sssd: shell command injection in sssctl (CVE-2021-3621)
* kernel: use-after-free in route4_change() in net/sched/cls_route.c (CVE-2021-3715)
* kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555)
* libX11: missing request length checks (CVE-2021-31535)
* 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.

Solution

For details on how to apply this update, which includes the changesdescribed in this advisory, refer to:https://access.redhat.com/articles/2974891

References

https://access.redhat.com/security/cve/CVE-2021-3621 https://access.redhat.com/security/cve/CVE-2021-3715 https://access.redhat.com/security/cve/CVE-2021-22555 https://access.redhat.com/security/cve/CVE-2021-31535 https://access.redhat.com/security/cve/CVE-2021-32399 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Virtualization 4 Hypervisor for RHEL 7:
Source: redhat-virtualization-host-4.3.18-20210903.0.el7_9.src.rpm
noarch: redhat-virtualization-host-image-update-4.3.18-20210903.0.el7_9.noarch.rpm
RHEL 7-based RHEV-H for RHEV 4 (build requirements):
Source: redhat-release-virtualization-host-4.3.18-1.el7ev.src.rpm redhat-virtualization-host-4.3.18-20210903.0.el7_9.src.rpm
noarch: redhat-virtualization-host-image-update-4.3.18-20210903.0.el7_9.noarch.rpm redhat-virtualization-host-image-update-placeholder-4.3.18-1.el7ev.noarch.rpm
x86_64: redhat-release-virtualization-host-4.3.18-1.el7ev.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-2021:3477-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3477
Issued Date: : 2021-09-09
CVE Names: CVE-2021-3621 CVE-2021-3715 CVE-2021-22555 CVE-2021-31535 CVE-2021-32399

Topic

An update for redhat-release-virtualization-host andredhat-virtualization-host is now available for Red Hat Virtualization 4for 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

RHEL 7-based RHEV-H for RHEV 4 (build requirements) - noarch, x86_64

Red Hat Virtualization 4 Hypervisor for RHEL 7 - noarch

Bugs Fixed

1961822 - CVE-2021-31535 libX11: missing request length checks

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

1975142 - CVE-2021-3621 sssd: shell command injection in sssctl

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

1993988 - CVE-2021-3715 kernel: use-after-free in route4_change() in net/sched/cls_route.c

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