Security advisory

{
  "id": "a623a4f7f1253d8665cbbe4fe65f808e45bacac21f9e77195433b2560f7fbba2",
  "url": "https://osv.dev/vulnerability/CVE-2018-20570",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-20570",
    "summary": "jp2_encode in jp2/jp2_enc.c in JasPer 2.0.14 has a heap-based buffer over-read.",
    "evidence": "osv:CVE-2018-20570",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-20570",
      "aliases": [
        "CVE-2018-20570"
      ],
      "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/jasper-software/jasper",
              "type": "GIT",
              "events": [
                {
                  "introduced": "1a36ca39da535af2e67848f5f43ffd657746e632"
                },
                {
                  "last_affected": "1a36ca39da535af2e67848f5f43ffd657746e632"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:jasper_project:jasper:2.0.14:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.0.14"
                      },
                      {
                        "last_affected": "2.0.14"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.0.14",
            "version-2.0.14"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20570.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:24.736545390Z",
      "provider": "osv",
      "references": [
        "https://www.oracle.com/security-alerts/cpuapr2020.html",
        "https://lists.debian.org/debian-lts-announce/2019/01/msg00003.html",
        "https://github.com/mdadams/jasper/issues/191"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-20570",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381690,
  "published_at": "2018-12-28T16:29:05.69+00:00"
}