high7.5
CVE-2021-43667
NULL Pointer Dereference in HyperLedger Fabric
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/hyperledger/fabric | >= 2.3.0, < 2.3.3 | 2.3.3 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linuxfoundation | Fabric | Versions 1.4.0, 2.0.0, 2.1.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/hyperledger/fabric/pull/2844
- https://jira.hyperledger.org/browse/FAB-18529
- https://github.com/advisories/GHSA-vjj6-5m9f-wqjw
- https://nvd.nist.gov/vuln/detail/CVE-2021-43667
- https://github.com/hyperledger/fabric/pull/2838/commits/ebf94b10ecc86d3a91619b98befc52277b1e3474