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GHSA-72x4-cq6r-jp4p
No affected components available
Impact
If a consensus client sends a malformed consensus request to an orderer it may crash the orderer node. This fix checks for the malformed consensus request and returns an error to the consensus client.
Specific Go Packages Affected
github.com/hyperledger/fabric/orderer/common/cluster
Patches
Fixed in v2.2.7 and v2.4.5.
Workarounds
None, users must upgrade to v2.2.7 or v2.4.5.
References
https://github.com/hyperledger/fabric/releases/tag/v2.2.7 https://github.com/hyperledger/fabric/releases/tag/v2.4.5
For more information
If you have any questions or comments about this advisory:
- Open an issue in Hyperledger Fabric repository
Credits
Thank you to Haosheng Wang of OPPO ZIWU Security Lab for this disclosure.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the availability of the system.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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