Security advisory

{
  "id": "e4810ea6587a74585d670a3c160183d36fc1110cf665bb4d12fe6dc75d6e3f91",
  "url": "https://osv.dev/vulnerability/CVE-2020-27545",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-27545",
    "summary": "libdwarf before 20201017 has a one-byte out-of-bounds read because of an invalid pointer dereference via an invalid line table in a crafted object.",
    "evidence": "osv:CVE-2020-27545",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-27545",
      "aliases": [
        "CVE-2020-27545"
      ],
      "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/davea42/libdwarf-code",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "95f634808c01f1c61bbec56ed2395af997f397ea"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "95f634808c01f1c61bbec56ed2395af997f397ea"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "20200825",
            "20200719",
            "20200703",
            "20200114",
            "20191104",
            "20191002",
            "20190529",
            "20190505",
            "20181024",
            "20180809",
            "20180724",
            "20180723",
            "20180527",
            "20180129",
            "20170709",
            "20170416",
            "20161124",
            "20161021",
            "20161001",
            "20160929",
            "20160923",
            "20160613",
            "20160507",
            "20160116",
            "20151114",
            "20150915",
            "20150913",
            "20150507",
            "20150310",
            "20150115",
            "20150112",
            "20140805",
            "20140519",
            "20140413",
            "20140208",
            "20140131",
            "20130729-b",
            "20130729",
            "20130207",
            "20130126",
            "20130125",
            "20121130",
            "20121127",
            "20120410",
            "20111214",
            "20111030",
            "20111009",
            "20110908",
            "20110612",
            "20110607",
            "20110605",
            "20110113"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-27545.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:59.609519824Z",
      "provider": "osv",
      "references": [
        "https://sourceforge.net/projects/libdwarf/",
        "https://www.prevanders.net/dwarfbug.html#DW202010-001",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2025694",
        "https://github.com/davea42/libdwarf-code/commit/95f634808c01f1c61bbec56ed2395af997f397ea"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:libdwarf_project:libdwarf:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "libdwarf_project:libdwarf",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "2020-10-17"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "20201017"
                  }
                ],
                "source": "DESCRIPTION"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-27545",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384125,
  "published_at": "2023-04-16T00:15:07.273+00:00"
}