Hitachi Energy AFS/AFR Series Products

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1. EXECUTIVE SUMMARY

• CVSS v3 7.5
• ATTENTION: Exploitable remotely/low attack complexity
• Vendor: Hitachi Energy
• Equipment: AFS650, AFS660, AFS665, AFS670, AFS675, AFS677, AFR677
• Vulnerabilities: Type Confusion, Use After Free, Double Free, Observable Discrepancy

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to create a denial-of-service condition.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Hitachi Energy AFS/AFR are affected:

• AFS650: Version 9.1.08 and prior
• AFS660-C: Version 7.1.05 and prior
• AFS665-B: Version 7.1.05 and prior
• AFS670-V2: Version 7.1.05 and prior
• AFS670: Version 9.1.08 and prior
• AFS675: Version 9.1.08 and prior
• AFS677: Version 9.1.08 and prior
• AFR677: Version 9.1.08 and prior

3.2 Vulnerability Overview

3.2.1 ACCESS OF RESOURCE USING INCOMPATIBLE TYPE (‘TYPE CONFUSION’) CWE-843

There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but the public structure definition for GENERAL_NAME incorrectly specified the type of the x400Address field as ASN1_TYPE. For more details check the NVD link.

CVE-2023-0286 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.4 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H).

3.2.2 USE AFTER FREE CWE-416

The public API function BIO

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