Security advisory

{
  "id": "34331157dc5e5cc98ea232f0d931b83990596ac0beb189e61f4ab87faf664945",
  "url": "https://osv.dev/vulnerability/CVE-2023-39741",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2023-39741",
    "summary": "lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at /libzpaq/libzpaq.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.",
    "evidence": "osv:CVE-2023-39741",
    "products": [],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2023-39741",
      "aliases": [
        "CVE-2023-39741"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ckolivas/lrzip",
              "type": "GIT",
              "events": [
                {
                  "introduced": "e5e9a61fccfd7eff1475bd209e5db11824d88369"
                },
                {
                  "last_affected": "e5e9a61fccfd7eff1475bd209e5db11824d88369"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:long_range_zip_project:long_range_zip:0.651:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.651"
                      },
                      {
                        "last_affected": "0.651"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.651",
            "v0.651"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-39741.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:44.002132486Z",
      "provider": "osv",
      "references": [
        "https://gist.github.com/huanglei3/ec9090096aa92445cf0a8baa8e929084",
        "https://github.com/huanglei3/lrzip_poc/tree/main/lrzip_heap_overflow",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/39xxx/CVE-2023-39741.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-39741",
        "https://github.com/ckolivas/lrzip/issues/246"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/39xxx/CVE-2023-39741.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-39741",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 511697,
  "published_at": "2023-08-17T00:00:00+00:00"
}