CVE-2019-11636 Information

Description

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 Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://github.com/zcash/zcash/issues/3955 https://saplingwoodchipper.github.io https://twitter.com/dukeleto/status/1120467430118232066

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5