CVE-2021-43669

Description

A vulnerability has been detected in HyperLedger Fabric v1.4.0, v2.0.0, v2.0.1, v2.3.0. It can easily break down as many orderers as the attacker wants. This bug can be leveraged by constructing a message whose header is invalid to the interface Order. This bug has been admitted and fixed by the developers of Fabric.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.47%
Vendor Advisory hyperledger.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://jira.hyperledger.org/browse/FAB-18528 vendor advisory
https://github.com/hyperledger/fabric/pull/2828 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-43669?
CVE-2021-43669 has been scored as a high severity vulnerability.
How to fix CVE-2021-43669?
To fix CVE-2021-43669, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-43669 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-43669 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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