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Red Hat Security Advisory 2021-3801-01

Red Hat Security Advisory 2021-3801-01
Posted Oct 13, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3801-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a bypass vulnerability.

tags | advisory, kernel, bypass
systems | linux, redhat
advisories | CVE-2021-22543, CVE-2021-3653, CVE-2021-3656, CVE-2021-37576
SHA-256 | 43375940a511d5f02ee335cf93c2c5063eb0463c68eccf3009a5851833c8ca76

Red Hat Security Advisory 2021-3801-01

Change Mirror Download
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Hash: SHA256

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

Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2021:3801-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3801
Issue date: 2021-10-12
CVE Names: CVE-2021-3653 CVE-2021-3656 CVE-2021-22543
CVE-2021-37576
=====================================================================

1. Summary:

An update for kernel 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 Client (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. Description:

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

Security Fix(es):

* kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO
checks (CVE-2021-22543)

* kernel: powerpc: KVM guest OS users can cause host OS memory corruption
(CVE-2021-37576)

* kernel: SVM nested virtualization issue in KVM (AVIC support)
(CVE-2021-3653)

* kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE)
(CVE-2021-3656)

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 panic due to double fault with DLM reporting for socket error
"sk_err=32/0" (BZ#1834878)

* "MFW indication via attention" message getting logged frequently after
every 5 minutes (BZ#1854544)

* lpfc fails to discovery in pt2pt with "2754 PRLI failure DID:0000EF
Status:x9/x91e00, data: x0" (BZ#1922479)

* pcpu_get_vm_areas using most memory from VmallocUsed (BZ#1970618)

* RHEL 7.9.z [qedf driver] Racing condition between qedf_cleanup_fcport and
releasing command after timeout (BZ#1982702)

* [Azure] RHEL 7.9 reports GPU/IB topology incorrectly on some Azure SKUs
(BZ#1984128)

* [stable guest ABI]Hot add CPU after migration cause guest hang
(BZ#1991856)

* i40e driver crash at RIP: i40e_config_vf_promiscuous_mode+0x165
(BZ#1993850)

* [nfs] Performance issue since commit 5a4f6f11951e (BZ#1995649)

* [kernel] Indefinite waiting for RCU callback while removing cgroup
(BZ#2000973)

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/):

1965461 - CVE-2021-22543 kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks
1983686 - CVE-2021-3653 kernel: SVM nested virtualization issue in KVM (AVIC support)
1983988 - CVE-2021-3656 kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE)
1986506 - CVE-2021-37576 kernel: powerpc: KVM guest OS users can cause host OS memory corruption

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
kernel-3.10.0-1160.45.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1160.45.1.el7.noarch.rpm
kernel-doc-3.10.0-1160.45.1.el7.noarch.rpm

x86_64:
bpftool-3.10.0-1160.45.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debug-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-devel-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-headers-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1160.45.1.el7.x86_64.rpm
perf-3.10.0-1160.45.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
python-perf-3.10.0-1160.45.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
bpftool-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1160.45.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
kernel-3.10.0-1160.45.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1160.45.1.el7.noarch.rpm
kernel-doc-3.10.0-1160.45.1.el7.noarch.rpm

x86_64:
bpftool-3.10.0-1160.45.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debug-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-devel-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-headers-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1160.45.1.el7.x86_64.rpm
perf-3.10.0-1160.45.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
python-perf-3.10.0-1160.45.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
bpftool-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1160.45.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
kernel-3.10.0-1160.45.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1160.45.1.el7.noarch.rpm
kernel-doc-3.10.0-1160.45.1.el7.noarch.rpm

ppc64:
bpftool-3.10.0-1160.45.1.el7.ppc64.rpm
bpftool-debuginfo-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-debug-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-debug-devel-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-devel-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-headers-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-tools-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-tools-libs-3.10.0-1160.45.1.el7.ppc64.rpm
perf-3.10.0-1160.45.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-1160.45.1.el7.ppc64.rpm
python-perf-3.10.0-1160.45.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-1160.45.1.el7.ppc64.rpm

ppc64le:
bpftool-3.10.0-1160.45.1.el7.ppc64le.rpm
bpftool-debuginfo-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-debug-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-devel-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-headers-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-tools-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-1160.45.1.el7.ppc64le.rpm
perf-3.10.0-1160.45.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-1160.45.1.el7.ppc64le.rpm
python-perf-3.10.0-1160.45.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-1160.45.1.el7.ppc64le.rpm

s390x:
bpftool-3.10.0-1160.45.1.el7.s390x.rpm
bpftool-debuginfo-3.10.0-1160.45.1.el7.s390x.rpm
kernel-3.10.0-1160.45.1.el7.s390x.rpm
kernel-debug-3.10.0-1160.45.1.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-1160.45.1.el7.s390x.rpm
kernel-debug-devel-3.10.0-1160.45.1.el7.s390x.rpm
kernel-debuginfo-3.10.0-1160.45.1.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-1160.45.1.el7.s390x.rpm
kernel-devel-3.10.0-1160.45.1.el7.s390x.rpm
kernel-headers-3.10.0-1160.45.1.el7.s390x.rpm
kernel-kdump-3.10.0-1160.45.1.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-1160.45.1.el7.s390x.rpm
kernel-kdump-devel-3.10.0-1160.45.1.el7.s390x.rpm
perf-3.10.0-1160.45.1.el7.s390x.rpm
perf-debuginfo-3.10.0-1160.45.1.el7.s390x.rpm
python-perf-3.10.0-1160.45.1.el7.s390x.rpm
python-perf-debuginfo-3.10.0-1160.45.1.el7.s390x.rpm

x86_64:
bpftool-3.10.0-1160.45.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debug-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-devel-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-headers-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1160.45.1.el7.x86_64.rpm
perf-3.10.0-1160.45.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
python-perf-3.10.0-1160.45.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
bpftool-debuginfo-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-1160.45.1.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-1160.45.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-1160.45.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-1160.45.1.el7.ppc64.rpm

ppc64le:
bpftool-debuginfo-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-1160.45.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-1160.45.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-1160.45.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-1160.45.1.el7.ppc64le.rpm

x86_64:
bpftool-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1160.45.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
kernel-3.10.0-1160.45.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1160.45.1.el7.noarch.rpm
kernel-doc-3.10.0-1160.45.1.el7.noarch.rpm

x86_64:
bpftool-3.10.0-1160.45.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debug-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-devel-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-headers-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1160.45.1.el7.x86_64.rpm
perf-3.10.0-1160.45.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
python-perf-3.10.0-1160.45.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
bpftool-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1160.45.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1160.45.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1160.45.1.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-2021-3653
https://access.redhat.com/security/cve/CVE-2021-3656
https://access.redhat.com/security/cve/CVE-2021-22543
https://access.redhat.com/security/cve/CVE-2021-37576
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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