{
  "document": {
    "aggregate_severity": {
      "text": "Medium"
    },
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "TuxCare License Agreement",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "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 Cloud Linux Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://tuxcare.com/contact/",
      "name": "TuxCare",
      "namespace": "https://tuxcare.com/"
    },
    "references": [
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/centos7els/vex/2023/cve-2023-0056-els_os-centos7els.json"
      }
    ],
    "tracking": {
      "current_release_date": "2026-10-15T17:37:44Z",
      "generator": {
        "date": "2026-10-15T17:37:44Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CVE-2023-0056-ELS_OS-CENTOS7ELS",
      "initial_release_date": "2023-03-23T21:15:00Z",
      "revision_history": [
        {
          "date": "2023-03-23T21:15:00Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-09-29T14:53:58Z",
          "number": "2",
          "summary": "Official Publication"
        },
        {
          "date": "2026-10-15T17:37:44Z",
          "number": "3",
          "summary": "Update document"
        }
      ],
      "status": "final",
      "version": "3"
    },
    "title": "Security update on CVE-2023-0056"
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Community Enterprise Operating System 7",
                "product": {
                  "name": "Community Enterprise Operating System 7",
                  "product_id": "CentOS-7",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:centos:centos:7:*:*:*:*:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Community Enterprise Operating System"
          }
        ],
        "category": "vendor",
        "name": "Red Hat, Inc."
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.i686",
                "product": {
                  "name": "haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.i686",
                  "product_id": "haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.i686",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/haproxy@1.5.18-9.el7_9.1.tuxcare.els1?arch=i686"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "i686"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64",
                "product": {
                  "name": "haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64",
                  "product_id": "haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/tuxcare/haproxy@1.5.18-9.el7_9.1.tuxcare.els1?arch=x86_64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          }
        ],
        "category": "vendor",
        "name": "TuxCare"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.i686 as a component of Community Enterprise Operating System 7",
          "product_id": "CentOS-7:haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.i686"
        },
        "product_reference": "haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.i686",
        "relates_to_product_reference": "CentOS-7"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 7",
          "product_id": "CentOS-7:haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64"
        },
        "product_reference": "haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64",
        "relates_to_product_reference": "CentOS-7"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-0056",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "notes": [
        {
          "category": "description",
          "text": "An uncontrolled resource consumption vulnerability was discovered in HAProxy which could crash the service. This issue could allow an authenticated remote attacker to run a specially crafted malicious server in an OpenShift cluster. The biggest impact is to availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "other",
          "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.",
          "title": "Statement"
        }
      ],
      "product_status": {
        "known_not_affected": [
          "CentOS-7:haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.i686",
          "CentOS-7:haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2023-0056"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/security/cve/CVE-2023-0056",
          "url": "https://access.redhat.com/security/cve/CVE-2023-0056"
        }
      ],
      "release_date": "2023-03-23T21:15:00Z",
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        },
        {
          "category": "impact",
          "date": "2026-10-15T17:35:25.074268Z",
          "details": "The haproxy package for CentOS 7 ELS is not affected by CVE-2023-0056. The vulnerable code path is part of the HTX message handling introduced in HAProxy 1.9, and the shipped 1.5.18 version has no HTX representation at all.",
          "product_ids": [
            "CentOS-7:haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.i686",
            "CentOS-7:haproxy-0:1.5.18-9.el7_9.1.tuxcare.els1.x86_64"
          ]
        }
      ]
    }
  ]
}