CVE-2019-11636

Zcash 2.x allows an inexpensive approach to "fill all transactions of all blocks" and "prevent any real transaction from occurring" via a "Sapling Wood-Chipper" attack.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/zcash/zcash/issues/3955	Third Party Advisory
https://saplingwoodchipper.github.io
https://twitter.com/dukeleto/status/1120467430118232066	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:z.cash:zcash::::::::
	cpe:2.3:a:z.cash:zcash:2.0.5:rc1::::::

History

No history.

Information

Published : 2019-05-01 17:29

Updated : 2019-05-09 21:29

NVD link : CVE-2019-11636

Mitre link : CVE-2019-11636

CVE.ORG link : CVE-2019-11636

JSON object : View

Products Affected

z.cash

zcash

CWE

CWE-254

7PK - Security Features

{"id": "CVE-2019-11636", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2019-05-01T17:29:00.230", "references": [{"url": "https://github.com/zcash/zcash/issues/3955", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://saplingwoodchipper.github.io", "source": "cve@mitre.org"}, {"url": "https://twitter.com/dukeleto/status/1120467430118232066", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-254"}]}], "descriptions": [{"lang": "en", "value": "Zcash 2.x allows an inexpensive approach to \"fill all transactions of all blocks\" and \"prevent any real transaction from occurring\" via a \"Sapling Wood-Chipper\" attack."}, {"lang": "es", "value": "Zcash 2.x permite un enfoque econ\u00f3mico para \"rellenar todas las transacciones de todos los bloques\" y \"evitar que ocurra cualquier transacci\u00f3n real\" mediante un ataque \"Sapling Wood-Chipper\"."}], "lastModified": "2019-05-09T21:29:06.673", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:z.cash:zcash:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5B59FF8F-169B-489E-89CB-139BA0039F8C", "versionEndIncluding": "2.0.4", "versionStartIncluding": "2.0.0"}, {"criteria": "cpe:2.3:a:z.cash:zcash:2.0.5:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "93874145-407B-401D-BCD7-46429F723706"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}