Possible denial of service in X.509 name checks
CVE: CVE-2024-6119
Component: openssl
CWE: CWE-843
Severity: Moderate
CVSS v3: 5.8/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Release date: 2024-09-04T00:00:00+00:00

A flaw was found in OpenSSL. Applications performing certificate name checks (e.g., TLS clients checking server certificates) may attempt to read an invalid memory address resulting in abnormal termination of the application process.

Statement: This vulnerability is classified as moderate severity rather than important because it primarily affects specific use cases involving certificate name checks against otherName subject alternative names, a scenario that is not commonly encountered. The issue only triggers a denial of service (DoS) by causing an abnormal application termination, without compromising the integrity, confidentiality, or availability of data at a broader scale. Additionally, TLS servers, which typically don't perform reference identity checks during client certificate validation, are largely unaffected. The impact is localized to certain TLS clients performing specific name comparisons, reducing the overall risk profile and justifying the moderate severity classification.

Remediation:
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:bd78fab2d62370a0a051c4284239c81e97304cf4cc63b97c194b7a9e1ff3235d

      (For s390x architecture)
      The image digest is sha256:31016c82002f5facebac2579b5f74d564f05a22f3c1d09fcec7b5271fdc25d41

      (For ppc64le architecture)
      The image digest is sha256:8f5b445a0c6ead7efcc437219a5e0c84bcc39c7845f517079cecf86ba3ce3408

      (For aarch64 architecture)
      The image digest is sha256:a56716b3f6cc89ae530684346c3b47816b11c717bfe51c038af7163f138ccdab

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
For OpenShift Container Platform 4.17 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/4.17/release_notes/ocp-4-17-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 as follows:

      (For x86_64 architecture)
      The image digest is sha256:bb75823f8bdf4a535b010d5727d16e05d0a030c145524e4cfb3fe05cafc7fc23

      (For s390x architecture)
      The image digest is sha256:4ea66325b60126f0f50e0890306f7af68509a6df446a0cde980d38acccf298be

      (For ppc64le architecture)
      The image digest is sha256:fadda9d582faf47a7d89b5bdd1110a9e65a3d40922f1c3c75f0bfa782ce11701

      (For aarch64 architecture)
      The image digest is sha256:ee79aa53276a1d92b9c0bf7e18d5fbe5af93f0f4d762f3ddd4edb50502c1d4b4

All OpenShift Container Platform 4.17 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/4.17/updating/updating_a_cluster/updating-cluster-cli.html
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/articles/11258
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/articles/11258
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/articles/11258
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.