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Red Hat Product Errata RHSA-2021:3767 - Security Advisory
Issued:
2021-09-24
Updated:
2021-10-12

RHSA-2021:3767 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: kernel security update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

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.

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

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 changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

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

Affected Products

  • Red Hat Enterprise Linux Server - AUS 7.2 x86_64

Fixes

  • BZ - 1965461 - CVE-2021-22543 kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks
  • BZ - 1983686 - CVE-2021-3653 kernel: SVM nested virtualization issue in KVM (AVIC support)

CVEs

  • CVE-2021-3653
  • CVE-2021-22543

References

  • https://access.redhat.com/security/updates/classification/#important
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux Server - AUS 7.2

SRPM
kernel-3.10.0-327.101.1.el7.src.rpm SHA-256: fd4a414d9e601ab4bd02f89312e8e85c11881883514336ec2d28f2128579082e
x86_64
kernel-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: ed4848750b96118758927c307938dd56fcb15c459b1cdeb643cfdcef9012a718
kernel-abi-whitelists-3.10.0-327.101.1.el7.noarch.rpm SHA-256: 0ad4ae28a927fa97ff7a4aa729cc3f0562fabe9dec506d66a22502349baaf1b1
kernel-debug-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: a40bf28364af6343fa3f1490d12fc21f92574fd2f0b8a9bd888662e0e5e3fbeb
kernel-debug-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: bd439e3ae0781b6b3fe7bc1c3cc5796d7e499e8720f5cc42a88b4d6ed3ab819c
kernel-debug-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: bd439e3ae0781b6b3fe7bc1c3cc5796d7e499e8720f5cc42a88b4d6ed3ab819c
kernel-debug-devel-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: 1ef9d0be06bf28010957e24a14e45908c699e4d04d09bb6afb67dbf8bf40b044
kernel-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: 06e96a2f742939115d3fc13e8d998156bdfe1127429e55b767f00d675184fb03
kernel-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: 06e96a2f742939115d3fc13e8d998156bdfe1127429e55b767f00d675184fb03
kernel-debuginfo-common-x86_64-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: eb188378c3a1e0500386ec9e15c4ae6486b70ffea3d19225571ee34704cfbace
kernel-debuginfo-common-x86_64-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: eb188378c3a1e0500386ec9e15c4ae6486b70ffea3d19225571ee34704cfbace
kernel-devel-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: eb0fc48a9cdea85cc390bf6decd8175d0d78fbe24ec8a7bd9025bfbc5b4993d6
kernel-doc-3.10.0-327.101.1.el7.noarch.rpm SHA-256: b7c208690853a80eb57391e691cd00323f9386095c02a3420d60ff366dc7b1a3
kernel-headers-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: 66d2645120771b758aec66c3011ea4e793d0056839cd3a95b252d9f6659800dc
kernel-tools-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: a27a1847a7d0030660601f95ab65d3fa345463878b99e5dd2710f0cf9b080093
kernel-tools-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: 100fdda015e1bd983d792fff280993ccc62c8235605cd781e7b8ae4e42b7328e
kernel-tools-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: 100fdda015e1bd983d792fff280993ccc62c8235605cd781e7b8ae4e42b7328e
kernel-tools-libs-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: 97b539b4b07d278198bce4848767bceed3de98c483bbf40903df806282720b42
kernel-tools-libs-devel-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: 9d07ea6e7d1b805582d736baaa9f4f74229638ca145ceb91d48232dca9511d05
perf-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: 3c095709594812e7f8df30fbb05bdc3d82b203fbed3bf65166395feb1c4dc4d5
perf-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: cb480c3f6d4b66384d7542fe0591c7eefce7a628bc4df89c272dceac018d5ed5
perf-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: cb480c3f6d4b66384d7542fe0591c7eefce7a628bc4df89c272dceac018d5ed5
python-perf-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: 06f3ac864a887a99a7d5e2d17cb087018668a3208ffe58a646c66b5d5c013d9d
python-perf-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: b301778bc2f8cf249d575f23510252eb418d598dfd24cdd6401b03bfc3312472
python-perf-debuginfo-3.10.0-327.101.1.el7.x86_64.rpm SHA-256: b301778bc2f8cf249d575f23510252eb418d598dfd24cdd6401b03bfc3312472

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

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