Vulnerability Monitor

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CVE-2023-0286


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. This field is subsequently interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an ASN1_STRING. When CRL checking is enabled (i.e. the application sets the X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass arbitrary pointers to a memcmp call, enabling them to read memory contents or enact a denial of service. In most cases, the attack requires the attacker to provide both the certificate chain and CRL, neither of which need to have a valid signature. If the attacker only controls one of these inputs, the other input must already contain an X.400 address as a CRL distribution point, which is uncommon. As such, this vulnerability is most likely to only affect applications which have implemented their own functionality for retrieving CRLs over a network.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.4, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), and availability (service disruption) for affected systems. Impacting 3 products from openssl, from stormshield, from stormshield organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2023-02-08T20:15:24.267

Last Modified

2026-06-17T05:25:12.637

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.4 (HIGH)

Weaknesses
  • Type: Primary
    CWE-843
  • Type: Secondary
    CWE-843

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application openssl openssl < 1.0.2zg Yes
Application openssl openssl < 1.1.1t Yes
Application openssl openssl < 3.0.8 Yes
Application stormshield stormshield_management_center < 3.3.3 Yes
Application stormshield stormshield_network_security < 2.7.11 Yes
Application stormshield stormshield_network_security < 3.7.34 Yes
Application stormshield stormshield_network_security < 3.11.22 Yes
Application stormshield stormshield_network_security < 4.3.16 Yes
Application stormshield stormshield_network_security < 4.6.3 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For openssl's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.