rhsa-2025:19300
Vulnerability from csaf_redhat
Published
2025-11-05 18:15
Modified
2025-11-06 23:42
Summary
Red Hat Security Advisory: OpenShift Container Platform 4.19.18 bug fix and security update

Notes

Topic
Red Hat OpenShift Container Platform release 4.19.18 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.19. Red Hat Product Security has rated this update as having a security impact of Moderate. 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. This advisory contains the container images for Red Hat OpenShift Container Platform 4.19.18. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/155630 Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes: https://docs.redhat.com/en/documentation/openshift_container_platform/4.19/html/release_notes/ Security Fix(es): * libssh: out-of-bounds read in sftp_handle() (CVE-2025-5318) 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 4.19 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.redhat.com/en/documentation/openshift_container_platform/4.19/html-single/updating_clusters/index#updating-cluster-cli.
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.


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      "text": "Moderate"
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    "category": "csaf_security_advisory",
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    "distribution": {
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    "notes": [
      {
        "category": "summary",
        "text": "Red Hat OpenShift Container Platform release 4.19.18 is now available with\nupdates to packages and images that fix several bugs and add enhancements.\n\n This release includes a security update for Red Hat OpenShift Container\nPlatform 4.19.\n\nRed Hat Product Security has rated this update as having a security impact\nof Moderate. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available for each vulnerability from\nthe 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\nThis advisory contains the container images for Red Hat OpenShift Container\nPlatform 4.19.18. See the following advisory for the RPM packages for this\nrelease:\n\nhttps://access.redhat.com/errata/155630\n\nSpace precludes documenting all of the container images in this advisory.\nSee the following Release Notes documentation, which will be updated\nshortly for this release, for details about these changes:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.19/html/release_notes/\n\nSecurity Fix(es):\n\n* libssh: out-of-bounds read in sftp_handle() (CVE-2025-5318)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage(s) listed in the References section.\n\nAll OpenShift Container Platform 4.19 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.19/html-single/updating_clusters/index#updating-cluster-cli.",
        "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"
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    "publisher": {
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        "summary": "2369131",
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      {
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        "summary": "OCPBUGS-62159",
        "url": "https://issues.redhat.com/browse/OCPBUGS-62159"
      },
      {
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        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_19300.json"
      }
    ],
    "title": "Red Hat Security Advisory: OpenShift Container Platform 4.19.18 bug fix and security update",
    "tracking": {
      "current_release_date": "2025-11-06T23:42:43+00:00",
      "generator": {
        "date": "2025-11-06T23:42:43+00:00",
        "engine": {
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          "version": "4.6.11"
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      "id": "RHSA-2025:19300",
      "initial_release_date": "2025-11-05T18:15:06+00:00",
      "revision_history": [
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          "number": "1",
          "summary": "Initial version"
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            "name": "ppc64le"
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                "name": "rhcos-s390x-4.19.9.6.202510281054-0",
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      {
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        },
        "product_reference": "rhcos-s390x-4.19.9.6.202510281054-0",
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      },
      {
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        "relates_to_product_reference": "9Base-RHOSE-4.19"
      }
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  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Ronald Crane"
          ]
        }
      ],
      "cve": "CVE-2025-5318",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "discovery_date": "2025-05-29T06:48:59.169000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2369131"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the libssh library in versions less than 0.11.2. An out-of-bounds read can be triggered in the sftp_handle function due to an incorrect comparison check that permits the function to access memory beyond the valid handle list and to return an invalid pointer, which is used in further processing. This vulnerability allows an authenticated remote attacker to potentially read unintended memory regions, exposing sensitive information or affect service behavior.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "libssh: out-of-bounds read in sftp_handle()",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue requires an attacker with valid credentials to access a server, limiting the scope to legitimate users of the SFTP service. Due to this reason, this flaw has been rated with a Moderate severity.\n\nWithin regulated environments, a combination of the following controls acts as a significant barrier to successfully exploiting a CWE-125: Out-of-bounds Read vulnerability and therefore downgrades the severity of this particular CVE from Moderate to Low.\n\nThe use of baseline configurations, change control, and configuration settings within the platform enforces secure system configurations, patch management, and proper runtime settings, which helps prevent the introduction of memory handling issues through insecure defaults, unpatched components, and misconfigurations. Specifically, the use of process isolation and memory protection ensures memory integrity by isolating processes and enforcing memory protection mechanisms that limit an attacker\u0027s ability to exploit or read memory. System monitoring controls provide an additional layer of protection in the detection of anomalous behavior and unauthorized memory-related access.",
          "title": "Statement"
        },
        {
          "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": [
          "9Base-RHOSE-4.19:rhcos-aarch64-4.19.9.6.202510281054-0",
          "9Base-RHOSE-4.19:rhcos-ppc64le-4.19.9.6.202510281054-0",
          "9Base-RHOSE-4.19:rhcos-s390x-4.19.9.6.202510281054-0",
          "9Base-RHOSE-4.19:rhcos-x86_64-4.19.9.6.202510281054-0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2025-5318"
        },
        {
          "category": "external",
          "summary": "RHBZ#2369131",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2369131"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2025-5318",
          "url": "https://www.cve.org/CVERecord?id=CVE-2025-5318"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-5318",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-5318"
        },
        {
          "category": "external",
          "summary": "https://www.libssh.org/security/advisories/CVE-2025-5318.txt",
          "url": "https://www.libssh.org/security/advisories/CVE-2025-5318.txt"
        }
      ],
      "release_date": "2025-06-24T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-11-05T18:15:06+00:00",
          "details": "For OpenShift Container Platform 4.19 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.19/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n      (For x86_64 architecture)\n      The image digest is {x864_DIGEST}\n\n      (For s390x architecture)\n      The image digest is {s390x_DIGEST}\n\n      (For ppc64le architecture)\n      The image digest is {ppc64le_DIGEST}\n\n      (For aarch64 architecture)\n      The image digest is {aarch64_DIGEST}\n\nAll OpenShift Container Platform 4.19 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.19/html-single/updating_clusters/index#updating-cluster-cli.",
          "product_ids": [
            "9Base-RHOSE-4.19:rhcos-aarch64-4.19.9.6.202510281054-0",
            "9Base-RHOSE-4.19:rhcos-ppc64le-4.19.9.6.202510281054-0",
            "9Base-RHOSE-4.19:rhcos-s390x-4.19.9.6.202510281054-0",
            "9Base-RHOSE-4.19:rhcos-x86_64-4.19.9.6.202510281054-0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2025:19300"
        },
        {
          "category": "workaround",
          "details": "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.",
          "product_ids": [
            "9Base-RHOSE-4.19:rhcos-aarch64-4.19.9.6.202510281054-0",
            "9Base-RHOSE-4.19:rhcos-ppc64le-4.19.9.6.202510281054-0",
            "9Base-RHOSE-4.19:rhcos-s390x-4.19.9.6.202510281054-0",
            "9Base-RHOSE-4.19:rhcos-x86_64-4.19.9.6.202510281054-0"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "9Base-RHOSE-4.19:rhcos-aarch64-4.19.9.6.202510281054-0",
            "9Base-RHOSE-4.19:rhcos-ppc64le-4.19.9.6.202510281054-0",
            "9Base-RHOSE-4.19:rhcos-s390x-4.19.9.6.202510281054-0",
            "9Base-RHOSE-4.19:rhcos-x86_64-4.19.9.6.202510281054-0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "libssh: out-of-bounds read in sftp_handle()"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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