CVE Vulnerability

CVE-2021-43667

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

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

References
Link Resource
https://jira.hyperledger.org/browse/FAB-18529 Exploit Vendor Advisory
https://github.com/hyperledger/fabric/pull/2844 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:linuxfoundation:fabric:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:fabric:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:fabric:2.1.0:*:*:*:*:*:*:*
Information

Published : 2021-11-18 04:15

Updated : 2021-11-23 04:36

NVD link : CVE-2021-43667

Mitre link : CVE-2021-43667

Products Affected
No products.
CWE
CWE-476