rhsa-2021_3642
Vulnerability from csaf_redhat
Published
2021-09-29 11:49
Modified
2024-11-05 23:56
Summary
Red Hat Security Advisory: OpenShift Container Platform 4.6.46 security update
Notes
Topic
Red Hat OpenShift Container Platform release 4.6.46 is now available with
updates to packages and images that fix several bugs and add enhancements.
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.
Details
Red Hat OpenShift Container Platform is Red Hat's cloud computing
Kubernetes application platform solution designed for on-premise or private
cloud deployments.
Security Fix(es):
* kubernetes: Symlink exchange can allow host filesystem access (CVE-2021-25741)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
All OpenShift Container Platform 4.6 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 Console or the CLI oc command. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.6/updating/updating-cluster-between-minor.html#understanding-upgrade-channels_updating-cluster-between-minor
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "Red Hat OpenShift Container Platform release 4.6.46 is now available with\nupdates to packages and images that fix several bugs and add enhancements.\n\nRed 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.", "title": "Topic" }, { "category": "general", "text": "Red Hat OpenShift Container Platform is Red Hat\u0027s cloud computing\nKubernetes application platform solution designed for on-premise or private\ncloud deployments.\n\nSecurity Fix(es):\n\n* kubernetes: Symlink exchange can allow host filesystem access (CVE-2021-25741)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAll OpenShift Container Platform 4.6 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 Console or the CLI oc command. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.6/updating/updating-cluster-between-minor.html#understanding-upgrade-channels_updating-cluster-between-minor", "title": "Details" }, { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2021:3642", "url": "https://access.redhat.com/errata/RHSA-2021:3642" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "1993749", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1993749" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_3642.json" } ], "title": "Red Hat Security Advisory: OpenShift Container Platform 4.6.46 security update", "tracking": { "current_release_date": "2024-11-05T23:56:56+00:00", "generator": { "date": "2024-11-05T23:56:56+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.1.1" } }, "id": "RHSA-2021:3642", "initial_release_date": "2021-09-29T11:49:14+00:00", "revision_history": [ { "date": "2021-09-29T11:49:14+00:00", "number": "1", "summary": "Initial version" }, { "date": "2021-09-29T11:49:14+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-05T23:56:56+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat OpenShift Container Platform 4.6", "product": { "name": "Red Hat OpenShift Container Platform 4.6", 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"openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.s390x as a component of Red Hat OpenShift Container Platform 4.6", "product_id": "8Base-RHOSE-4.6:openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.s390x" }, "product_reference": "openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.s390x", "relates_to_product_reference": "8Base-RHOSE-4.6" }, { "category": "default_component_of", "full_product_name": { "name": "openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.x86_64 as a component of Red Hat OpenShift Container Platform 4.6", "product_id": "8Base-RHOSE-4.6:openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.x86_64" }, "product_reference": "openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.x86_64", "relates_to_product_reference": "8Base-RHOSE-4.6" } ] }, "vulnerabilities": [ { "acknowledgments": [ { "names": [ "the Kubernetes Security Response Committee" ] }, { "names": [ "Fabricio Voznika", "Mark Wolters" ], "organization": "Google", "summary": "Acknowledged by upstream." } ], "cve": "CVE-2021-25741", "cwe": { "id": "CWE-59", "name": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)" }, "discovery_date": "2021-08-13T00:00:00+00:00", "flags": [ { "label": "vulnerable_code_not_present", "product_ids": [ "7Server-RH7-RHOSE-4.6:cri-o-0:1.19.4-2.rhaos4.6.gitea37eea.el7.src", "7Server-RH7-RHOSE-4.6:cri-o-0:1.19.4-2.rhaos4.6.gitea37eea.el7.x86_64", "7Server-RH7-RHOSE-4.6:cri-o-debuginfo-0:1.19.4-2.rhaos4.6.gitea37eea.el7.x86_64", "8Base-RHOSE-4.6:cri-o-0:1.19.4-2.rhaos4.6.gitea37eea.el8.ppc64le", "8Base-RHOSE-4.6:cri-o-0:1.19.4-2.rhaos4.6.gitea37eea.el8.s390x", "8Base-RHOSE-4.6:cri-o-0:1.19.4-2.rhaos4.6.gitea37eea.el8.src", "8Base-RHOSE-4.6:cri-o-0:1.19.4-2.rhaos4.6.gitea37eea.el8.x86_64", "8Base-RHOSE-4.6:cri-o-debuginfo-0:1.19.4-2.rhaos4.6.gitea37eea.el8.ppc64le", "8Base-RHOSE-4.6:cri-o-debuginfo-0:1.19.4-2.rhaos4.6.gitea37eea.el8.s390x", "8Base-RHOSE-4.6:cri-o-debuginfo-0:1.19.4-2.rhaos4.6.gitea37eea.el8.x86_64", "8Base-RHOSE-4.6:cri-o-debugsource-0:1.19.4-2.rhaos4.6.gitea37eea.el8.ppc64le", "8Base-RHOSE-4.6:cri-o-debugsource-0:1.19.4-2.rhaos4.6.gitea37eea.el8.s390x", "8Base-RHOSE-4.6:cri-o-debugsource-0:1.19.4-2.rhaos4.6.gitea37eea.el8.x86_64" ] } ], "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1993749" } ], "notes": [ { "category": "description", "text": "A flaw was found in kubernetes. An authorized user can exploit this by creating pods with crafted subpath volume mounts to access files and directories outside of the volume, including on the host node\u0027s filesystem.", "title": "Vulnerability description" }, { "category": "summary", "text": "kubernetes: Symlink exchange can allow host filesystem access", "title": "Vulnerability summary" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "7Server-RH7-RHOSE-4.6:openshift-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el7.src", "7Server-RH7-RHOSE-4.6:openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el7.x86_64", "8Base-RHOSE-4.6:openshift-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.src", 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"8Base-RHOSE-4.6:cri-o-debuginfo-0:1.19.4-2.rhaos4.6.gitea37eea.el8.x86_64", "8Base-RHOSE-4.6:cri-o-debugsource-0:1.19.4-2.rhaos4.6.gitea37eea.el8.ppc64le", "8Base-RHOSE-4.6:cri-o-debugsource-0:1.19.4-2.rhaos4.6.gitea37eea.el8.s390x", "8Base-RHOSE-4.6:cri-o-debugsource-0:1.19.4-2.rhaos4.6.gitea37eea.el8.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2021-25741" }, { "category": "external", "summary": "RHBZ#1993749", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1993749" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2021-25741", "url": "https://www.cve.org/CVERecord?id=CVE-2021-25741" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-25741", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-25741" }, { "category": "external", "summary": "https://groups.google.com/g/kubernetes-security-announce/c/nyfdhK24H7s", "url": "https://groups.google.com/g/kubernetes-security-announce/c/nyfdhK24H7s" } ], "release_date": "2021-09-15T16:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2021-09-29T11:49:14+00:00", "details": "For OpenShift Container Platform 4.6 see the following documentation, which\nwill be updated shortly for this release, for important instructions on how\nto upgrade your cluster and fully apply this asynchronous errata update:\n\nhttps://docs.openshift.com/container-platform/4.6/release_notes/ocp-4-6-release-notes.html\n\nDetails on how to access this content are available at\nhttps://docs.openshift.com/container-platform/4.6/updating/updating-cluster-cli.html", "product_ids": [ "7Server-RH7-RHOSE-4.6:openshift-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el7.src", "7Server-RH7-RHOSE-4.6:openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el7.x86_64", "8Base-RHOSE-4.6:openshift-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.src", "8Base-RHOSE-4.6:openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.ppc64le", "8Base-RHOSE-4.6:openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.s390x", "8Base-RHOSE-4.6:openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2021:3642" }, { "category": "workaround", "details": "OpenShift Container Platform runs with SELinux in enforcing mode, which reduces the impact of this vulnerability, but does not completely prevent it from being exploited.", "product_ids": [ "7Server-RH7-RHOSE-4.6:cri-o-0:1.19.4-2.rhaos4.6.gitea37eea.el7.src", "7Server-RH7-RHOSE-4.6:cri-o-0:1.19.4-2.rhaos4.6.gitea37eea.el7.x86_64", "7Server-RH7-RHOSE-4.6:cri-o-debuginfo-0:1.19.4-2.rhaos4.6.gitea37eea.el7.x86_64", "7Server-RH7-RHOSE-4.6:openshift-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el7.src", "7Server-RH7-RHOSE-4.6:openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el7.x86_64", "8Base-RHOSE-4.6:cri-o-0:1.19.4-2.rhaos4.6.gitea37eea.el8.ppc64le", "8Base-RHOSE-4.6:cri-o-0:1.19.4-2.rhaos4.6.gitea37eea.el8.s390x", "8Base-RHOSE-4.6:cri-o-0:1.19.4-2.rhaos4.6.gitea37eea.el8.src", "8Base-RHOSE-4.6:cri-o-0:1.19.4-2.rhaos4.6.gitea37eea.el8.x86_64", "8Base-RHOSE-4.6:cri-o-debuginfo-0:1.19.4-2.rhaos4.6.gitea37eea.el8.ppc64le", "8Base-RHOSE-4.6:cri-o-debuginfo-0:1.19.4-2.rhaos4.6.gitea37eea.el8.s390x", "8Base-RHOSE-4.6:cri-o-debuginfo-0:1.19.4-2.rhaos4.6.gitea37eea.el8.x86_64", "8Base-RHOSE-4.6:cri-o-debugsource-0:1.19.4-2.rhaos4.6.gitea37eea.el8.ppc64le", "8Base-RHOSE-4.6:cri-o-debugsource-0:1.19.4-2.rhaos4.6.gitea37eea.el8.s390x", "8Base-RHOSE-4.6:cri-o-debugsource-0:1.19.4-2.rhaos4.6.gitea37eea.el8.x86_64", "8Base-RHOSE-4.6:openshift-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.src", "8Base-RHOSE-4.6:openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.ppc64le", "8Base-RHOSE-4.6:openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.s390x", "8Base-RHOSE-4.6:openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.x86_64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "products": [ "7Server-RH7-RHOSE-4.6:openshift-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el7.src", "7Server-RH7-RHOSE-4.6:openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el7.x86_64", "8Base-RHOSE-4.6:openshift-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.src", "8Base-RHOSE-4.6:openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.ppc64le", "8Base-RHOSE-4.6:openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.s390x", "8Base-RHOSE-4.6:openshift-hyperkube-0:4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ], "title": "kubernetes: Symlink exchange can allow host filesystem access" } ] }
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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.