{
  "document": {
    "aggregate_severity": {
      "text": "High"
    },
    "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/debian10els/vex/2018/cve-2018-20615-els_os-debian10els.json"
      }
    ],
    "tracking": {
      "current_release_date": "2026-07-09T17:41:48Z",
      "generator": {
        "date": "2026-07-09T17:41:48Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CVE-2018-20615-ELS_OS-DEBIAN10ELS",
      "initial_release_date": "2018-01-01T00:00:00Z",
      "revision_history": [
        {
          "date": "2018-01-01T00:00:00Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-07-09T17:41:48Z",
          "number": "2",
          "summary": "Official Publication"
        }
      ],
      "status": "final",
      "version": "2"
    },
    "title": "Security update on CVE-2018-20615"
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Debian 10",
                "product": {
                  "name": "Debian 10",
                  "product_id": "Debian-10",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:debian:debian_linux:10:*:*:*:*:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Debian"
          }
        ],
        "category": "vendor",
        "name": "Software in the Public Interest, Inc."
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.amd64",
                "product": {
                  "name": "haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.amd64",
                  "product_id": "haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.amd64",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/haproxy@1.8.19-1%2Bdeb10u5%2Btuxcare.els1?arch=amd64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "amd64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "haproxy-doc-0:1.8.19-1+deb10u5+tuxcare.els1.all",
                "product": {
                  "name": "haproxy-doc-0:1.8.19-1+deb10u5+tuxcare.els1.all",
                  "product_id": "haproxy-doc-0:1.8.19-1+deb10u5+tuxcare.els1.all",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/haproxy-doc@1.8.19-1%2Bdeb10u5%2Btuxcare.els1?arch=all"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "vim-haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.all",
                "product": {
                  "name": "vim-haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.all",
                  "product_id": "vim-haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.all",
                  "product_identification_helper": {
                    "purl": "pkg:deb/tuxcare/vim-haproxy@1.8.19-1%2Bdeb10u5%2Btuxcare.els1?arch=all"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "all"
          }
        ],
        "category": "vendor",
        "name": "TuxCare"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.amd64 as a component of Debian 10",
          "product_id": "Debian-10:haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.amd64"
        },
        "product_reference": "haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.amd64",
        "relates_to_product_reference": "Debian-10"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "haproxy-doc-0:1.8.19-1+deb10u5+tuxcare.els1.all as a component of Debian 10",
          "product_id": "Debian-10:haproxy-doc-0:1.8.19-1+deb10u5+tuxcare.els1.all"
        },
        "product_reference": "haproxy-doc-0:1.8.19-1+deb10u5+tuxcare.els1.all",
        "relates_to_product_reference": "Debian-10"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "vim-haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.all as a component of Debian 10",
          "product_id": "Debian-10:vim-haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.all"
        },
        "product_reference": "vim-haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.all",
        "relates_to_product_reference": "Debian-10"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2018-20615",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "notes": [
        {
          "category": "description",
          "text": "An out-of-bounds read issue was discovered in the HTTP/2 protocol decoder in HAProxy 1.8.x and 1.9.x through 1.9.0 which can result in a crash. The processing of the PRIORITY flag in a HEADERS frame requires 5 extra bytes, and while these bytes are skipped, the total frame length was not re-checked to make sure they were present in the frame.",
          "title": "Vulnerability description"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        },
        {
          "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": [
          "Debian-10:haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.amd64",
          "Debian-10:haproxy-doc-0:1.8.19-1+deb10u5+tuxcare.els1.all",
          "Debian-10:vim-haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.all"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2018-20615"
        },
        {
          "category": "external",
          "summary": "http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00018.html",
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00018.html"
        },
        {
          "category": "external",
          "summary": "http://www.securityfocus.com/bid/106645",
          "url": "http://www.securityfocus.com/bid/106645"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/errata/RHBA-2019:0327",
          "url": "https://access.redhat.com/errata/RHBA-2019:0327"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/errata/RHSA-2019:0275",
          "url": "https://access.redhat.com/errata/RHSA-2019:0275"
        },
        {
          "category": "external",
          "summary": "https://usn.ubuntu.com/3858-1/",
          "url": "https://usn.ubuntu.com/3858-1/"
        },
        {
          "category": "external",
          "summary": "https://www.mail-archive.com/haproxy%40formilux.org/msg32304.html",
          "url": "https://www.mail-archive.com/haproxy%40formilux.org/msg32304.html"
        }
      ],
      "release_date": "2019-03-21T16:00:00Z",
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          },
          "products": [
            "Debian-10:haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.amd64",
            "Debian-10:haproxy-doc-0:1.8.19-1+deb10u5+tuxcare.els1.all",
            "Debian-10:vim-haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.all"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        },
        {
          "category": "impact",
          "date": "2026-07-09T12:06:50.935967Z",
          "details": "Not affected: HAProxy 1.8.19 already contains the upstream fix (commit a01f45e3…) that adds the missing frame-length recheck for HEADERS+PRIORITY in HTTP/2, which is the code path implicated by CVE-2018-20615. The vulnerability impacted 1.8.x only before 1.8.17 (and 1.9.0), so in 1.8.19 the out-of-bounds read and crash condition are not present.",
          "product_ids": [
            "Debian-10:haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.amd64",
            "Debian-10:haproxy-doc-0:1.8.19-1+deb10u5+tuxcare.els1.all",
            "Debian-10:vim-haproxy-0:1.8.19-1+deb10u5+tuxcare.els1.all"
          ]
        }
      ]
    }
  ]
}