ckolivas lrzip stream.c lzma_decompress_buf use after free

{
  "id": "49b51e15ca70edb2e9a2cdd29757776ab3f5cb5e6becf5c97ba7566c85c58d27",
  "url": "https://osv.dev/vulnerability/CVE-2025-15570",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ckolivas lrzip stream.c lzma_decompress_buf use after free",
    "summary": "A vulnerability was found in ckolivas lrzip up to 0.651. This impacts the function lzma_decompress_buf of the file stream.c. Performing a manipulation results in use after free. Attacking locally is a requirement. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.",
    "evidence": "osv:CVE-2025-15570",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2025-15570",
      "aliases": [
        "CVE-2025-15570"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ckolivas/lrzip",
              "type": "GIT",
              "events": [
                {
                  "introduced": "e5e9a61fccfd7eff1475bd209e5db11824d88369"
                },
                {
                  "last_affected": "e5e9a61fccfd7eff1475bd209e5db11824d88369"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0.651"
                      },
                      {
                        "last_affected": "0.651"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "cpe": "cpe:2.3:a:ckolivas:lrzip:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.651"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.651",
            "v0.651"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-15570.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.014088958Z",
      "provider": "osv",
      "references": [
        "https://github.com/ckolivas/lrzip/",
        "https://lists.debian.org/debian-lts-announce/2026/05/msg00011.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/15xxx/CVE-2025-15570.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-15570",
        "https://vuldb.com/?id.344926",
        "https://vuldb.com/?submit.752595",
        "https://github.com/ckolivas/lrzip/issues/262",
        "https://vuldb.com/?ctiid.344926",
        "https://github.com/user-attachments/files/21709004/PoC_UAF.zip"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-119",
          "CWE-416"
        ],
        "cna_assigner": "VulDB",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/15xxx/CVE-2025-15570.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-15570",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 499950,
  "published_at": "2026-02-10T13:02:06.564+00:00"
}