CVEvulnerability
CVE-2021-43667
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-11-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-476
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.
Affected configurations
• linuxfoundation fabric 1.4.0
• linuxfoundation fabric 2.0.0
• linuxfoundation fabric 2.1.0
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://github.com/hyperledger/fabric/pull/2844 Patch, Third Party Advisory
- https://jira.hyperledger.org/browse/FAB-18529 Exploit, Vendor Advisory
- https://github.com/hyperledger/fabric/pull/2844 Patch, Third Party Advisory
- https://jira.hyperledger.org/browse/FAB-18529 Exploit, Vendor Advisory