Security advisory

{
  "id": "a9ed33fa7cfd3650215c81213005664ab6cfd066c02e34dadacdb2375342409b",
  "url": "https://osv.dev/vulnerability/CVE-2020-28241",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-28241",
    "summary": "libmaxminddb before 1.4.3 has a heap-based buffer over-read in dump_entry_data_list in maxminddb.c.",
    "evidence": "osv:CVE-2020-28241",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-28241",
      "aliases": [
        "BIT-libmaxminddb-2020-28241",
        "CVE-2020-28241"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/maxmind/libmaxminddb",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "07797e9dfb6771190f9fa41a33babe19425ef552"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:maxmind:libmaxminddb:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.4.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.4.2",
            "1.4.1",
            "1.4.0",
            "1.3.2",
            "1.3.1",
            "1.3.0",
            "1.2.1",
            "1.2.0",
            "1.1.5",
            "1.1.4",
            "1.1.3",
            "1.1.2",
            "1.1.0",
            "1.0.4",
            "1.0.3",
            "1.0.2",
            "1.0.1",
            "1.0.0",
            "0.5.6",
            "0.5.5",
            "0.5.4",
            "0.5.3",
            "0.5.2",
            "0.5.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-28241.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:04.230512357Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6WUK4UCOB5FJVK36E22IRLEYGKMUWGBG/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ELTOHZBPO6XVUVADP4DPZBNQCPTYOQBV/",
        "https://lists.debian.org/debian-lts-announce/2020/11/msg00019.html",
        "https://security.gentoo.org/glsa/202011-15",
        "https://github.com/maxmind/libmaxminddb/compare/1.4.2...1.4.3",
        "https://github.com/maxmind/libmaxminddb/issues/236",
        "https://github.com/maxmind/libmaxminddb/pull/237"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "32"
                  },
                  {
                    "last_affected": "32"
                  },
                  {
                    "introduced": "33"
                  },
                  {
                    "last_affected": "33"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-28241",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384176,
  "published_at": "2020-11-06T05:15:10.973+00:00"
}