{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Moderate"
    },
    "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": "An update is now available for Red Hat Ceph Storage 3.3 that runs on Ubuntu 16.04.\n\nRed 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.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Red Hat Ceph Storage is a scalable, open, software-defined storage platform that combines the most stable version of the Ceph storage system with a Ceph management platform, deployment utilities, and support services.\n\nSecurity Fix(es):\n\n* ceph: denial of service in RGW daemon (CVE-2019-19337)\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.",
        "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-2019:4357",
        "url": "https://access.redhat.com/errata/RHSA-2019:4357"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#moderate",
        "url": "https://access.redhat.com/security/updates/classification/#moderate"
      },
      {
        "category": "external",
        "summary": "1781170",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1781170"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2019/rhsa-2019_4357.json"
      }
    ],
    "title": "Red Hat Security Advisory: Red Hat Ceph Storage security update",
    "tracking": {
      "current_release_date": "2024-11-15T04:13:50+00:00",
      "generator": {
        "date": "2024-11-15T04:13:50+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.2.1"
        }
      },
      "id": "RHSA-2019:4357",
      "initial_release_date": "2019-12-19T18:26:49+00:00",
      "revision_history": [
        {
          "date": "2019-12-19T18:26:49+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2019-12-19T18:26:49+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-15T04:13:50+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Ceph Storage 3 for Ubuntu",
                "product": {
                  "name": "Red Hat Ceph Storage 3 for Ubuntu",
                  "product_id": "Red Hat Ceph Storage 3 for Ubuntu",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:ceph_storage:3::ubuntu16.04"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Ceph Storage"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2019-19337",
      "cwe": {
        "id": "CWE-20",
        "name": "Improper Input Validation"
      },
      "discovery_date": "2019-12-09T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1781170"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the way the Ceph RADOS Gateway daemon handles S3 requests. An authenticated attacker can abuse this flaw by causing a remote denial of service by sending a specially crafted HTTP Content-Length header to the Ceph RADOS Gateway server.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "ceph: denial of service in RGW daemon",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This flaw only affects Red Hat Ceph Storage 3, upstream versions of ceph are not affected.\n\nThe ceph package distributed by Red Hat Enterprise Linux 7 and 8 are not affected by this issue, as it doesn\u0027t ship any server-side library.\n\nRed Hat OpenStack now consumes fixes directly from the base ceph channels . Therefore the ceph package provided by Red Hat OpenStack 13 has been marked as \u0027will not fix\u0027.",
          "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": [
          "Red Hat Ceph Storage 3 for Ubuntu"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2019-19337"
        },
        {
          "category": "external",
          "summary": "RHBZ#1781170",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1781170"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2019-19337",
          "url": "https://www.cve.org/CVERecord?id=CVE-2019-19337"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-19337",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-19337"
        }
      ],
      "release_date": "2019-12-19T17:07:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2019-12-19T18:26:49+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/documentation/en-us/red_hat_ceph_storage/3/html-single/installation_guide_for_ubuntu/index#upgrading-the-storage-cluster",
          "product_ids": [
            "Red Hat Ceph Storage 3 for Ubuntu"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2019:4357"
        },
        {
          "category": "workaround",
          "details": "1. By default system will use /etc/init.d/ceph-radosgw, stop this service by\n~]# /etc/init.d/ceph-radosgw stop\n\n2. Create systemd service, and change command line parameters according to the environment where Ceph radosgw is running.\n\n~]# cat /usr/lib/systemd/system/ceph-rgw.service\n[Unit]\nDescription=Ceph RGW daemon\n\n[Service]\nType=forking\nExecStart=/bin/radosgw -n client.rgw.$(HOSTNAME REDACTED)\nRestart=on-abnormal\nRestartSec=1s\n\n[Install]\nWantedBy=multi-user.target\n\n3. Run systemd service \u0027ceph-rgw.service\u0027\n\nCaveat: It still takes +1-2 sec to get service back online. After applying above mentioned mitigation, the malicious IP can be blocked by a firewall rule if there are continuous attempts to launch remote denial of service. This mitigation is of limited use if the attack is launched from multiple IPs. It is recommended to limit the exposure of ceph RGW server to known clients.",
          "product_ids": [
            "Red Hat Ceph Storage 3 for Ubuntu"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          },
          "products": [
            "Red Hat Ceph Storage 3 for Ubuntu"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "ceph: denial of service in RGW daemon"
    }
  ]
}