RHSA-2021:5128MediumCVSS 9.8

Red Hat Security Advisory: Openshift Logging security and bug update (5.1.5)

Published
December 14, 2021
Last Modified
August 2, 2026

🔗 CVE IDs covered (5)

CVE-2021-21409 →CVE-2021-37136 →CVE-2021-37137 →CVE-2021-44228 →CVE-2021-45046 →

📋 Description

CVE-2021-21409 — netty: Request smuggling via content-length header CVE-2021-37136 — netty-codec: Bzip2Decoder doesn't allow setting size restrictions for decompressed data CVE-2021-37137 — netty-codec: SnappyFrameDecoder doesn't restrict chunk length and may buffer skippable chunks in an unnecessary way CVE-2021-44228 — log4j-core: Remote code execution in Log4j 2.x when logs contain an attacker-controlled string value CVE-2021-45046 — log4j-core: DoS in log4j 2.x with thread context message pattern and context lookup pattern (incomplete fix for CVE-2021-44228)

🎯 Affected products24

  • OpenShift Logging 5.1
  • openshift-logging/cluster-logging-operator-bundle@sha256:9ff35e6d560796a50b470c75ba6862cc79c6d9e30074e4a3f2c606fae3722956_amd64 as a component of OpenShift Logging 5.1
  • openshift-logging/cluster-logging-rhel8-operator@sha256:64a4376815864ae9b521396b510a0d1627665142b14cd3c2e3aa9452231a542e_s390x as a component of OpenShift Logging 5.1
  • openshift-logging/cluster-logging-rhel8-operator@sha256:70aca191fa4fe95e857f8cba3925d88e9965e8c868c6362e00ad0ce912360a99_ppc64le as a component of OpenShift Logging 5.1
  • openshift-logging/cluster-logging-rhel8-operator@sha256:76573c99dcd3f44e6bc81b018867ee3bfe3c33ea1878c63675a39e85b4c72de5_amd64 as a component of OpenShift Logging 5.1
  • openshift-logging/elasticsearch-operator-bundle@sha256:862602f0b5cf3dc1bdd69f236d09a4bf1630fdd77e7faf30a1f4858558360202_amd64 as a component of OpenShift Logging 5.1
  • openshift-logging/elasticsearch-proxy-rhel8@sha256:09eb62fb9c67251f67cf13bbd840c274d879285cb3151e4540df5c9e286debff_s390x as a component of OpenShift Logging 5.1
  • openshift-logging/elasticsearch-proxy-rhel8@sha256:551c671792f1d97cf00b1c52b8645d6aa734655bc834f280013408e2d6101b81_amd64 as a component of OpenShift Logging 5.1
  • openshift-logging/elasticsearch-proxy-rhel8@sha256:c57ce065696844f5c5d0e09969d228f79423b2d1d2f97a5a539c87fb3de63793_ppc64le as a component of OpenShift Logging 5.1
  • openshift-logging/elasticsearch-rhel8-operator@sha256:0807527589e608dec6aa6f94cccac8cf89331a86cdb193139f88c375604c9afe_s390x as a component of OpenShift Logging 5.1
  • openshift-logging/elasticsearch-rhel8-operator@sha256:2467fb3d733e318b3ce1474301361af0247580b7abf9b8b2d3482707d0272949_ppc64le as a component of OpenShift Logging 5.1
  • openshift-logging/elasticsearch-rhel8-operator@sha256:5e9ed1c4e59daccc7ed0a3418900f8088f8307016311b670e7d23be304b61f36_amd64 as a component of OpenShift Logging 5.1
  • openshift-logging/elasticsearch6-rhel8@sha256:315b9b9057b2893d0e14fe7c3e2809066ce90b5b42863934de93734ee26d212c_s390x as a component of OpenShift Logging 5.1
  • openshift-logging/elasticsearch6-rhel8@sha256:711054937975c1e7061381bdcadd90ca8192648624888b6ba999dbedf616f8ed_amd64 as a component of OpenShift Logging 5.1
  • openshift-logging/elasticsearch6-rhel8@sha256:fca86030c0886e0c41d4000d4907e6a58717b95c206d34dba5197d44aa8d6d02_ppc64le as a component of OpenShift Logging 5.1
  • openshift-logging/eventrouter-rhel8@sha256:b85c8866c068409bee0b7f162e3a5f04c075c221d04bc7f6347ca3f9e022840a_amd64 as a component of OpenShift Logging 5.1
  • openshift-logging/eventrouter-rhel8@sha256:c47fda436df07eaab5a3878c37c43b6ce401c216f5207a6d9b2d1017d5ad1a62_ppc64le as a component of OpenShift Logging 5.1
  • openshift-logging/eventrouter-rhel8@sha256:cb3c3b89d3969a1ffe6b11b343cda4c074f3f87572dfc2b6b4d681802b4c420c_s390x as a component of OpenShift Logging 5.1
  • openshift-logging/fluentd-rhel8@sha256:623dd6d9c57ed7c44e57f5f7ddfbc5b16dc986b86a20188781ebefdde9f87f0d_amd64 as a component of OpenShift Logging 5.1
  • openshift-logging/fluentd-rhel8@sha256:760f9ed42e7634fc246fc638985802d84df561d87c80628ba7bf7db8543e0007_s390x as a component of OpenShift Logging 5.1
  • openshift-logging/fluentd-rhel8@sha256:8a21d9ea3bcc997ddaa38cf7115b8ad982d9e019beece3dd52a027aeaf211c3e_ppc64le as a component of OpenShift Logging 5.1
  • openshift-logging/kibana6-rhel8@sha256:2d9f4a1319755cdfdf5e1cf8bd7a12edc6e17b5a85fef5f10a067e5a936a095b_s390x as a component of OpenShift Logging 5.1
  • openshift-logging/kibana6-rhel8@sha256:b3cdddf65666934636aa6a6a7cf3c9f00d4f793cfb0b9eef8e0aacf04b6fb7c0_ppc64le as a component of OpenShift Logging 5.1
  • openshift-logging/kibana6-rhel8@sha256:f68496878ed86375e0d28d4b01d1686e1af078582710576fcb8a1a4b7c6ec20f_amd64 as a component of OpenShift Logging 5.1

✅ Remediation

For OpenShift Container Platform 4.8 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 errata update: https://docs.openshift.com/container-platform/4.8/release_notes/ocp-4-8-release-notes.html For Red Hat OpenShift Logging 5.1, see the following instructions to apply this update: https://docs.openshift.com/container-platform/4.8/logging/cluster-logging-upgrading.html Workaround: For Log4j versions >=2.10 set the system property log4j2.formatMsgNoLookups or the environment variable LOG4J_FORMAT_MSG_NO_LOOKUPS to true For Log4j versions >=2.7 and <=2.14.1 all PatternLayout patterns can be modified to specify the message converter as %m{nolookups} instead of just %m For Log4j versions >=2.0-beta9 and <=2.10.0 remove the JndiLookup class from the classpath. For example: ``` zip -q -d log4j-core-*.jar org/apache/logging/log4j/core/lookup/JndiLookup.class ``` On OpenShift 4 and in OpenShift Logging, the above mitigation can be applied by following the steps in this article: https://access.redhat.com/solutions/6578421 On OpenShift 3.11, mitigation to the affected Elasticsearch component can be applied by following the steps in this article: https://access.redhat.com/solutions/6578441 Workaround: For Log4j versions up to and including 2.15.0, this issue can be mitigated by removing the JndiLookup class from the classpath (example: zip -q -d log4j-core-*.jar org/apache/logging/log4j/core/lookup/JndiLookup.class).

🔗 References (9)