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Red Hat Updates

2603
Classification
These posts contain security alerts, including digital loopholes, electronic attacks, technical updates, and they are classified base on the level of severity.

Critical

High

Medium

Low

Warning Date

Severity Level

Warning Number

Target Sector

2 December, 2021

● Critical

2021-3961

All

Description:

Red Hat has released security updates to address several vulnerabilities in the following products, the most ones:

  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.4 x86_64
  • Red Hat Enterprise Linux Server - AUS 8.4 x86_64
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.4 s390x
  • Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.4 ppc64le
  • Red Hat Enterprise Linux Server - TUS 8.4 x86_64
  • Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.4 aarch64
  • Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 8.4 ppc64le
  • Red Hat Enterprise Linux Server - Update Services for SAP Solutions 8.4 x86_64
  • Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
  • Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
  • Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
  • Red Hat Enterprise Linux Server 7 x86_64
  • Red Hat Enterprise Linux Workstation 7 x86_64
  • Red Hat Enterprise Linux Desktop 7 x86_64
  • Red Hat Enterprise Linux for IBM z Systems 7 s390x
  • Red Hat Enterprise Linux for Power, big endian 7 ppc64
  • Red Hat Enterprise Linux for Scientific Computing 7 x86_64
  • Red Hat Enterprise Linux for Power, little endian 7 ppc64le
  • Red Hat Enterprise Linux for x86_64 8 x86_64
  • Red Hat Enterprise Linux for IBM z Systems 8 s390x
  • Red Hat Enterprise Linux for Power, little endian 8 ppc64le
  • Red Hat Enterprise Linux for ARM 64 8 aarch64
  • Red Hat OpenShift Container Platform 4.7 for RHEL 8 x86_64
  • Red Hat OpenShift Container Platform 4.7 for RHEL 7 x86_64
  • Red Hat OpenShift Container Platform for Power 4.7 for RHEL 8 ppc64le
  • Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.7 for RHEL 8 s390x

Threats:

An attacker could exploit these vulnerabilities by doing the following:

  • Memory corruption

Best practice and Recommendations:

The CERT team encourages users to review Red Hat security advisory and apply the necessary updates:

Last updated at 2 December, 2021

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