Security advisory

{
  "id": "0cf8a96b4e75e472c38d108d7ac19d6510011f0ddb114bc7119e59caa5f877a2",
  "url": "https://osv.dev/vulnerability/CVE-2018-6542",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-6542",
    "summary": "In ZZIPlib 0.13.67, there is a bus error (when handling a disk64_trailer seek value) caused by loading of a misaligned address in the zzip_disk_findfirst function of zzip/mmapped.c.",
    "evidence": "osv:CVE-2018-6542",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-6542",
      "aliases": [
        "CVE-2018-6542"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/gdraheim/zziplib",
              "type": "GIT",
              "events": [
                {
                  "introduced": "9020a6ff18d2a9c0445b3c00d2ca19320dea3baf"
                },
                {
                  "last_affected": "9020a6ff18d2a9c0445b3c00d2ca19320dea3baf"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gdraheim:zziplib:0.13.67:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.13.67"
                      },
                      {
                        "last_affected": "0.13.67"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.13.67",
            "v0.13.67"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-6542.json"
          }
        }
      ],
      "modified": "2026-10-20T10:49:56.380748135Z",
      "provider": "osv",
      "references": [
        "https://github.com/gdraheim/zziplib/issues/17"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-6542",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 380997,
  "published_at": "2018-02-02T09:29:00.587+00:00"
}