CVE-2021-36219

Published Sep 27, 2021 CVSS 3.1 · 9.8 Critical EPSS 1.7% KEV · Not listed
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. This was resolved after v1.58.3 and not reproducible in sgxwallet v1.77.0.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-22839 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.
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00502}

epss

{'score': 0.00303}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 4, 2024, 12:54 AM
Reserved
Jul 7, 2021, 12:00 AM
Status
Modified
Published
Sep 27, 2021, 2:15 PM
Modified
Jun 17, 2026, 3:58 AM