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.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

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

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/hyperledger/fabric/pull/2844	Patch Third Party Advisory
https://jira.hyperledger.org/browse/FAB-18529	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	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:::::::*

History

No history.

Information

Published : 2021-11-18 16:15

Updated : 2021-11-23 16:36

NVD link : CVE-2021-43667

Mitre link : CVE-2021-43667

CVE.ORG link : CVE-2021-43667

JSON object : View

Products Affected

linuxfoundation

fabric

CWE

CWE-476

NULL Pointer Dereference

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