SB2023111493 - Improper validation of integrity check value in Fabric

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Main Vulnerability Database SB2023111493

SB2023111493 - Improper validation of integrity check value in Fabric

Published: November 14, 2023 Updated: April 23, 2026

Security Bulletin ID SB2023111493
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper validation of integrity check value (CVE-ID: CVE-2023-46132)

CWE-ID: CWE-354 - Improper Validation of Integrity Check Value

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote user to cause a state fork and alter ledger state.

The vulnerability exists due to improper integrity check in block transaction hashing when processing cross-linked blocks. A remote user can craft a cross-linked block to cause a state fork and alter ledger state.

In Fabric v1 and v2, exploitation can occur when a peer replicates a block from a malicious peer. In Fabric v3 preview, a malicious orderer can also cause the issue.


Remediation

Install update from vendor's website.

References