bind9: Assertion failure when serving both stale cache data and authoritative zone content
CVE: CVE-2024-4076
Component: bind
Severity: Important
CVSS v3: 7.5/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Release date: 2024-07-23T00:00:00+00:00

A flaw was found in the bind9 package, where a client query triggers stale data and also requires local lookups may trigger a assertion failure. This issue results in a denial of service of the bind server.

Statement: The discovered flaw in the BIND9 package is of high severity due to its dual impact on DNS server functionality and stability. The issue where client queries trigger the return of stale data undermines the integrity and reliability of DNS responses, potentially leading to incorrect or outdated information being served to clients. This can cause significant disruptions in services reliant on accurate DNS resolutions. Moreover, the assertion failure triggered by local lookups poses a critical threat, as it can crash the BIND server, resulting in a denial of service (DoS). Such an outage disrupts DNS operations, impacting network availability and access to internet services.

Remediation:
For OpenShift Container Platform 4.13 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:

      https://docs.openshift.com/container-platform/4.13/release_notes/ocp-4-13-release-notes.html

You may download the oc tool and use it to inspect release image metadata for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.

      The sha values for the release are

      (For x86_64 architecture)
      The image digest is sha256:ab6f574665395d809511db9dc57764358278538eaae248c6d199208b3c30ab7d

      (For s390x architecture)
      The image digest is sha256:5d0769628b09763b170b7be275971144dd74034da83b3d8d42ac24dba7b603f3

      (For ppc64le architecture)
      The image digest is sha256:b32a1b7910754ca0babb0ee4c7099e0cd74ed35a05820a64472ebcebdbe57b8c

      (For aarch64 architecture)
      The image digest is sha256:4714b66b8fb0ceeca59fb6a696db81559002261bd4a03e7d55c5a3b766e96242

All OpenShift Container Platform 4.13 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.13/updating/updating-cluster-cli.html
For OpenShift Container Platform 4.14 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:

      https://docs.openshift.com/container-platform/4.14/release_notes/ocp-4-14-release-notes.html

You may download the oc tool and use it to inspect release image metadata for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.

      The sha values for the release are

      (For x86_64 architecture)
      The image digest is sha256:4bc4925e8028158e3f313aa83e59e181c94d88b4aa82a3b00202d6f354e8dfed

      (For s390x architecture)
      The image digest is sha256:788a7a0fd2d808d1107d7ffc6731f799bdb8a41ac01ffab2afdbcb83b3390ffa

      (For ppc64le architecture)
      The image digest is sha256:f5c4474b162b3be7f693c51572d21dc5b1c8e14861049f2c426f4cce0a6bb4d8

      (For aarch64 architecture)
      The image digest is sha256:0bad0cf89c81b99f44e8db697ff63c8b1acf973dc57cf138eadfd7708844027e

All OpenShift Container Platform 4.14 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.14/updating/updating_a_cluster/updating-cluster-cli.html
For OpenShift Container Platform 4.15 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:

      https://docs.openshift.com/container-platform/4.15/release_notes/ocp-4-15-release-notes.html

You may download the oc tool and use it to inspect release image metadata for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.

      The sha values for the release are

      (For x86_64 architecture)
      The image digest is sha256:29d88fadd452261fc8a0bbbb5d920a7fe5b8b7a0050f673a7c47059f03daef28

      (For s390x architecture)
      The image digest is sha256:59557a8caba9c7f7e1fe4b39545d1aa33d12ed9e6b4ff1f118b0ae16087ac577

      (For ppc64le architecture)
      The image digest is sha256:890a9bc6f7f9c65e6d98d677085228b462a00c096afd08082f4a7f56441679bc

      (For aarch64 architecture)
      The image digest is sha256:7dd6c863983390d4a975c7a01ce12eabbe1bed9fee07d36faa000e98f3cc9e73

All OpenShift Container Platform 4.15 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.15/updating/updating_a_cluster/updating-cluster-cli.html
For OpenShift Container Platform 4.16 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:

      https://docs.openshift.com/container-platform/4.16/release_notes/ocp-4-16-release-notes.html

You may download the oc tool and use it to inspect release image metadata for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.

      The sha values for the release are

      (For x86_64 architecture)
      The image digest is sha256:793bac91943944692d72a61c47a3102edb70fb2948cdf54019f06376a87298ad

      (For s390x architecture)
      The image digest is sha256:925fb39b1c42a1b59aeb91cd3c12b4ca6f358459914809381fd6d7def577abdb

      (For ppc64le architecture)
      The image digest is sha256:a46a00e18fb14fe10a00bd87d579e0229b4aed46dd66b5f93d6e161164660d61

      (For aarch64 architecture)
      The image digest is sha256:9f20082482f4b82e3c39bfcd3eb7be7d0a1f5171cc22e6af42ae2df6ad1d74ad

All OpenShift Container Platform 4.16 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.16/updating/updating_a_cluster/updating-cluster-cli.html
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.