CVE-2021-43667 Information

Description

A vulnerability has been detected in HyperLedger Fabric v1.4.0 v2.0.0 v2.1.0. This bug can be leveraged by constructing a message whose payload is nil and sending this message with the method ‘forwardToLeader’. This bug has been admitted and fixed by the developers of Fabric. If leveraged any leader node will crash.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://jira.hyperledger.org/browse/FAB-18529 https://github.com/hyperledger/fabric/pull/2844

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