Red Hat Product Errata RHSA-2021:3873 - Security Advisory
Issued:
2021-10-14
Updated:
2021-10-14

RHSA-2021:3873 - Security Advisory

Synopsis

Important: Red Hat Advanced Cluster Management 2.2.9 security, bug, and container updates

Type/Severity

Security Advisory: Important

Topic

Red Hat Advanced Cluster Management for Kubernetes 2.2.9 General Availability release images, which provide security updates, one or more container updates, and bug fixes.

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

Red Hat Advanced Cluster Management for Kubernetes 2.2.9 images

Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments.

Clusters and applications are all visible and managed from a single console — with security policy built in.

This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which provide bug fixes and security fixes. See the following Release Notes documentation, which will be updated shortly for this release, for additional details about this release:

https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.2/html/release_notes/

Security fixes:

  • nginx: Off-by-one in ngx_resolver_copy() when labels are followed by a pointer to a root domain name (CVE-2021-23017)
  • redis: Lua scripts can overflow the heap-based Lua stack (CVE-2021-32626)
  • redis: Integer overflow issue with Streams (CVE-2021-32627)
  • redis: Integer overflow bug in the ziplist data structure (CVE-2021-32628)
  • redis: Integer overflow issue with intsets (CVE-2021-32687)
  • redis: Integer overflow issue with strings (CVE-2021-41099)
  • redis: Out of bounds read in lua debugger protocol parser (CVE-2021-32672)
  • redis: Denial of service via Redis Standard Protocol (RESP) request (CVE-2021-32675)
  • object-path: Type confusion vulnerability can lead to a bypass of CVE-2020-15256 (CVE-2021-23434)

Bug fixes:

  • RHACM 2.2.9 images (BZ #1999601)

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.2/html-single/install/index#installing

Affected Products

  • Red Hat Advanced Cluster Management for Kubernetes 2 for RHEL 8 x86_64
  • Red Hat Advanced Cluster Management for Kubernetes 2 for RHEL 7 x86_64

Fixes

  • BZ - 1963121 - CVE-2021-23017 nginx: Off-by-one in ngx_resolver_copy() when labels are followed by a pointer to a root domain name
  • BZ - 1999601 - RHACM 2.2.9 images
  • BZ - 1999810 - CVE-2021-23434 object-path: Type confusion vulnerability can lead to a bypass of CVE-2020-15256
  • BZ - 2010991 - CVE-2021-32687 redis: Integer overflow issue with intsets
  • BZ - 2011000 - CVE-2021-32675 redis: Denial of service via Redis Standard Protocol (RESP) request
  • BZ - 2011001 - CVE-2021-32672 redis: Out of bounds read in lua debugger protocol parser
  • BZ - 2011004 - CVE-2021-32628 redis: Integer overflow bug in the ziplist data structure
  • BZ - 2011010 - CVE-2021-32627 redis: Integer overflow issue with Streams
  • BZ - 2011017 - CVE-2021-32626 redis: Lua scripts can overflow the heap-based Lua stack
  • BZ - 2011020 - CVE-2021-41099 redis: Integer overflow issue with strings

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