{"api_version":"1","generated_at":"2026-07-23T14:05:53+00:00","cve":"CVE-2021-36219","urls":{"html":"https://cve.report/CVE-2021-36219","api":"https://cve.report/api/cve/CVE-2021-36219.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-36219","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-36219"},"summary":{"title":"CVE-2021-36219","description":"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. 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This was resolved after v1.58.3 and not reproducible in sgxwallet v1.77.0."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://github.com/skalenetwork/sgxwallet/releases","refsource":"MISC","name":"https://github.com/skalenetwork/sgxwallet/releases"},{"refsource":"MISC","name":"https://github.com/skalenetwork/sgxwallet/commit/4e9b5b7526db083177e81f8bafeaa4914d276a82","url":"https://github.com/skalenetwork/sgxwallet/commit/4e9b5b7526db083177e81f8bafeaa4914d276a82"}]}},"nvd":{"publishedDate":"2021-09-27 14:15:00","lastModifiedDate":"2021-10-01 22:19:00","problem_types":["CWE-824"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL"},"exploitabilityScore":3.9,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":7.5},"severity":"HIGH","exploitabilityScore":10,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:skale:sgxwallet:1.58.3:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"36219","Ordinal":"211762","Title":"CVE-2021-36219","CVE":"CVE-2021-36219","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"36219","Ordinal":"1","NoteData":"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.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"36219","Ordinal":"2","NoteData":"2021-09-27","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"36219","Ordinal":"3","NoteData":"2021-09-27","Type":"Other","Title":"Modified"}]}}}