Security advisory

{
  "id": "b20c9b97fb4520a8f293709b22bf39a3752fdc0a5e81ef502e2d7c495d93dcf0",
  "url": "https://osv.dev/vulnerability/CVE-2018-13843",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-13843",
    "summary": "An issue has been found in HTSlib 1.8. It is a memory leak in bgzf_getline in bgzf.c. NOTE: the software maintainer's position is that the \"failure to free memory\" can be fixed in applications that use the HTSlib library (such as test/test_bgzf.c in the original report) and is not a library issue",
    "evidence": "osv:CVE-2018-13843",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-13843",
      "aliases": [
        "CVE-2018-13843"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/samtools/htslib",
              "type": "GIT",
              "events": [
                {
                  "introduced": "be22a2a1082f6e570718439b9ace2db17a609eae"
                },
                {
                  "last_affected": "be22a2a1082f6e570718439b9ace2db17a609eae"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:htslib:htslib:1.8:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.8"
                      },
                      {
                        "last_affected": "1.8"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.8"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-13843.json"
          }
        }
      ],
      "modified": "2026-10-20T10:49:49.434838651Z",
      "provider": "osv",
      "references": [
        "https://github.com/samtools/htslib/issues/731#issue-339662537"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-13843",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 380841,
  "published_at": "2018-07-10T18:29:00.407+00:00"
}