Security advisory

{
  "id": "2376888b397a2aa7a10564994859979db237c7191598990b2e67f0cb483aaca4",
  "url": "https://osv.dev/vulnerability/CVE-2019-17639",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-17639",
    "summary": "In Eclipse OpenJ9 prior to version 0.21 on Power platforms, calling the System.arraycopy method with a length longer than the length of the source or destination array can, in certain specially crafted code patterns, cause the current method to return prematurely with an undefined return value. This allows whatever value happens to be in the return register at that time to be used as if it matches the method's declared return type.",
    "evidence": "osv:CVE-2019-17639",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-17639",
      "aliases": [
        "CVE-2019-17639"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/eclipse-openj9/openj9",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "05fa2d3611f757a1ca7bd45d7312f99dd60403cc"
                },
                {
                  "introduced": "34cf4c07578b37050e6498dc74c84a83efe321b3"
                },
                {
                  "last_affected": "bb8127767909875d5b7895e97ba9e2b38324af58"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:eclipse:openj9:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.20.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:eclipse:openj9:0.21.0:-:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.21.0-NA"
                      },
                      {
                        "last_affected": "0.21.0-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:eclipse:openj9:0.21.0:milestone1:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.21.0-milestone1"
                      },
                      {
                        "last_affected": "0.21.0-milestone1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:eclipse:openj9:0.21.0:milestone2:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.21.0-milestone2"
                      },
                      {
                        "last_affected": "0.21.0-milestone2"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.21.0-NA",
            "0.21.0-milestone1",
            "0.21.0-milestone2",
            "openj9-0.21.0-m2",
            "openj9-0.20.0",
            "openj9-0.21.0-m1",
            "openj9-0.20.0-m2",
            "openj9-0.20.0-m1",
            "openj9-0.19.0-m1",
            "openj9-0.18.0-m1",
            "openj9-0.17.0-m1",
            "openj9-0.16.0-m1",
            "openj9-0.12.0-rc1",
            "openj9-0.12.0-m2",
            "openj9-0.12.0-m1",
            "openj9-0.11.0-rc2",
            "openj9-0.11.0",
            "openj9-0.11.0-rc1",
            "openj9-0.10.0-rc1",
            "openj9-0.9.0-rc1",
            "openj9-0.8.0-rc2",
            "openj9-0.8.0",
            "openj9-0.8.0-rc1",
            "openj9-0.0RC2",
            "openj9-0.0",
            "openj9-0.0M1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-17639.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:50.436742462Z",
      "provider": "osv",
      "references": [
        "https://bugs.eclipse.org/bugs/show_bug.cgi?id=563998"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-17639",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 437248,
  "published_at": "2020-07-15T22:15:13.577+00:00"
}