What is CVE-2021-43667?

CVE-2021-43667 is a high-severity vulnerability in Linuxfoundation Fabric, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2021-11-18.

How severe is CVE-2021-43667?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Linuxfoundation Fabric

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.

EPSS: 0.013 (67.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linuxfoundation Fabric — versions 1.4.0, 2.0.0, 2.1.0
N/a — versions n/a

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

cve@mitre.org (Exploit, x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-43667?: CVE-2021-43667 is a high-severity vulnerability in Linuxfoundation Fabric, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2021-11-18.
How severe is CVE-2021-43667?: High severity. CVSS v3 base score is 7.5 out of 10.