Security advisory

{
  "id": "04465ab53aeebd77b0f6cb0938fa8056460f348bdd82f00c92be8d7a79204592",
  "url": "https://osv.dev/vulnerability/CVE-2021-36219",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-36219",
    "summary": "An issue was discovered in SKALE sgxwallet 1.58.3. The provided input for ECALL 14 triggers a branch in trustedEcdsaSign that frees a non-initialized pointer from the stack. An attacker can chain multiple enclave calls to prepare a stack that contains a valid address. This address is then freed, resulting in compromised integrity of the enclave. This was resolved after v1.58.3 and not reproducible in sgxwallet v1.77.0.",
    "evidence": "osv:CVE-2021-36219",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-36219",
      "aliases": [
        "CVE-2021-36219"
      ],
      "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/skalenetwork/sgxwallet",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6d6e49b766c39c3247e7f1e015f7e090398adee4"
                },
                {
                  "last_affected": "6d6e49b766c39c3247e7f1e015f7e090398adee4"
                },
                {
                  "fixed": "4e9b5b7526db083177e81f8bafeaa4914d276a82"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:skale:sgxwallet:1.58.3:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.58.3"
                      },
                      {
                        "last_affected": "1.58.3"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "4e9b5b7526db083177e81f8bafeaa4914d276a82"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.58.3",
            "build_base_1_58_3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36219.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:52.377631240Z",
      "provider": "osv",
      "references": [
        "https://github.com/skalenetwork/sgxwallet/releases",
        "https://github.com/skalenetwork/sgxwallet/commit/4e9b5b7526db083177e81f8bafeaa4914d276a82"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-36219",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384713,
  "published_at": "2021-09-27T14:15:08.537+00:00"
}