CVE-2021-36219

CVSS V2 High 7.5 CVSS V3 Critical 9.8
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.
Overview
  • CVE ID
  • CVE-2021-36219
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-09-27T14:15:08
  • Last Modified Date
  • 2021-10-01T22:19:17
Weakness Enumerations
CWE URL
CWE-824 http://cwe.mitre.org/data/definitions/824.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:skale:sgxwallet:1.58.3:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 7.5
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://github.com/skalenetwork/sgxwallet/releases Release Notes Third Party Advisory
https://github.com/skalenetwork/sgxwallet/commit/4e9b5b7526db083177e81f8bafeaa4914d276a82 Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-36219
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36219
History
Created Old Value New Value Data Type Notes
2022-05-10 06:52:38 Added to TrackCVE
2022-12-05 11:20:30 2021-09-27T14:15Z 2021-09-27T14:15:08 CVE Published Date updated
2022-12-05 11:20:30 2021-10-01T22:19:17 CVE Modified Date updated
2022-12-05 11:20:30 Analyzed Vulnerability Status updated