Security advisory

{
  "id": "8f5690d68ddf349009c3163ed2b1aa6b87cfac22356cf19ef15b1606f9053bb6",
  "url": "https://osv.dev/vulnerability/CVE-2020-4068",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-4068",
    "summary": "In APNSwift 1.0.0, calling APNSwiftSigner.sign(digest:) is likely to result in a heap buffer overflow. This has been fixed in 1.0.1.",
    "evidence": "osv:CVE-2020-4068",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2020-4068",
      "aliases": [
        "CVE-2020-4068",
        "GHSA-qh2w-vjxg-mjcg"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/kylebrowning/apnswift",
              "type": "GIT",
              "events": [
                {
                  "introduced": "3f198df8e9e0539ef8d17b248e0b732301c6856e"
                },
                {
                  "last_affected": "3f198df8e9e0539ef8d17b248e0b732301c6856e"
                },
                {
                  "fixed": "97fa7f69dcdd89168fff84e0ba8f999881ee3d3f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apnswift_project:apnswift:1.0.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.0.0"
                      },
                      {
                        "last_affected": "1.0.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "97fa7f69dcdd89168fff84e0ba8f999881ee3d3f"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-4068.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:22.541887339Z",
      "provider": "osv",
      "references": [
        "https://github.com/kylebrowning/APNSwift/security/advisories/GHSA-qh2w-vjxg-mjcg",
        "https://github.com/kylebrowning/APNSwift/issues/31",
        "https://github.com/kylebrowning/APNSwift/pull/32",
        "https://github.com/kylebrowning/APNSwift/commit/97fa7f69dcdd89168fff84e0ba8f999881ee3d3f"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-4068",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385237,
  "published_at": "2020-06-22T16:15:11.87+00:00"
}