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Red Hat Product Errata RHSA-2021:4692 - Security Advisory
Issued:
2021-11-16
Updated:
2021-11-16

RHSA-2021:4692 - 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 7.4 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: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free (CVE-2020-36385)
  • 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 7.4 x86_64

Fixes

  • BZ - 1974319 - CVE-2020-36385 kernel: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free
  • BZ - 1983686 - CVE-2021-3653 kernel: SVM nested virtualization issue in KVM (AVIC support)

CVEs

  • CVE-2020-36385
  • CVE-2021-3653

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 7.4

SRPM
kernel-3.10.0-693.95.1.el7.src.rpm SHA-256: 9d7404bb117df8a2fd278d4aec22641405d5228164a8332fa82b5e680383a917
x86_64
kernel-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: 505c8422aa07dfffc74866db55e9e036d5587081d07c3308ba5f35b9bb5f48bb
kernel-abi-whitelists-3.10.0-693.95.1.el7.noarch.rpm SHA-256: 0cb8fc6a4b95de82374f83f47c336134620b4561133d6e4524d1078a0b413d26
kernel-debug-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: d536a810fa8486a7aad2956080db94e20e235402df01b99cded36d206803acc4
kernel-debug-debuginfo-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: 81355f2391f56895fd73105d291c30433ce47559b2805b514b556fe618ea620e
kernel-debug-debuginfo-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: 81355f2391f56895fd73105d291c30433ce47559b2805b514b556fe618ea620e
kernel-debug-devel-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: 23df2c091e80d2840c6489aa362bc7dbdd950a93785ded644b0466a3e64ce010
kernel-debuginfo-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: 61ef75d84958d92397fc092d6a84df7dda99ce61b10574771ab6e7aa7b44b2bd
kernel-debuginfo-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: 61ef75d84958d92397fc092d6a84df7dda99ce61b10574771ab6e7aa7b44b2bd
kernel-debuginfo-common-x86_64-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: c658b4bd598189cfdcda57b6a573b6d62019ad44b19bee0ed636f7792c0bdaf4
kernel-debuginfo-common-x86_64-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: c658b4bd598189cfdcda57b6a573b6d62019ad44b19bee0ed636f7792c0bdaf4
kernel-devel-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: f37918c5238fa567be529daf30150ca0647dea3539dc5ecd932de25dbdcd1a93
kernel-doc-3.10.0-693.95.1.el7.noarch.rpm SHA-256: 0f85b34f0beb12208840cad3d48604c4186f7c4bc7dff629759f41f2930af259
kernel-headers-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: b5890ae7d486b2c4dfa501ea2ccaece124e7eeafec27c277e50f1cc6a56884cc
kernel-tools-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: 453bf5b40abc89e8e3d2850bbdb1635ea28025642eaf03fb80f63f33326d9e80
kernel-tools-debuginfo-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: 06f68c4ce697443b0675a5da45d9484bb55b650fbfb0a928cb608509126d0bdf
kernel-tools-debuginfo-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: 06f68c4ce697443b0675a5da45d9484bb55b650fbfb0a928cb608509126d0bdf
kernel-tools-libs-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: 2ab23c2a4733736d77365874ec18aed690cc661cacb8233ded1ec3e7f28917a7
kernel-tools-libs-devel-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: 4d3617f45bc659dbacfd30f5098f1c8c407e68d0a9381ae31b38382aa708968b
perf-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: b927c4dfd5e5ea6f701a0437b8276ef330409dd26f9a9752eadcda20521d8796
perf-debuginfo-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: e1c9d00c285d394b10782dd57a070bc66b597972c58fb588f25ffa5f1c4da3aa
perf-debuginfo-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: e1c9d00c285d394b10782dd57a070bc66b597972c58fb588f25ffa5f1c4da3aa
python-perf-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: 41e377cc7bb73593b1deaf35b6f26a6f1091ffc6b25355045548576df3132f81
python-perf-debuginfo-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: 1f2a4cb27e0686897f15ccd3c222e332ac25bc05e7faee8697a0d48b756dade4
python-perf-debuginfo-3.10.0-693.95.1.el7.x86_64.rpm SHA-256: 1f2a4cb27e0686897f15ccd3c222e332ac25bc05e7faee8697a0d48b756dade4

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

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