Vulnerability-Lookup

GSD-2023-0286

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

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.

Aliases

CVE-2023-0286

Aliases

CVE-2023-0286

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-0286",
    "id": "GSD-2023-0286",
    "references": [
      "https://alas.aws.amazon.com/cve/html/CVE-2023-0286.html",
      "https://www.debian.org/security/2023/dsa-5343",
      "https://access.redhat.com/errata/RHSA-2023:0946",
      "https://www.suse.com/security/cve/CVE-2023-0286.html",
      "https://ubuntu.com/security/CVE-2023-0286"
    ]
  },
  "gsd": {
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      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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          "package_slug": "conan/openssl",
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          "title": "Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)",
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          "description": "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.",
          "fixed_versions": [
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          "package_slug": "pypi/cryptography",
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          "solution": "Upgrade to version 39.0.1 or above.",
          "title": "Vulnerable OpenSSL included in cryptography wheels",
          "urls": [
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            "https://nvd.nist.gov/vuln/detail/CVE-2023-0286",
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        }
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          }
        ],
        "id": "CVE-2023-0286",
        "lastModified": "2024-02-04T09:15:09.113",
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                "availabilityImpact": "HIGH",
                "baseScore": 7.4,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
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            "url": "https://security.gentoo.org/glsa/202402-08"
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            "url": "https://www.openssl.org/news/secadv/20230207.txt"
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        "sourceIdentifier": "openssl-security@openssl.org",
        "vulnStatus": "Modified",
        "weaknesses": [
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  }
}

CVE-2023-0286 (GCVE-0-2023-0286)

Vulnerability from cvelistv5 – Published: 2023-02-08 19:01 – Updated: 2026-10-14 19:23

Title

X.400 address type confusion in X.509 GeneralName

Summary

Severity

7.4 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-06 15:57 UTC

CWE

type confusion vulnerability
CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')

Assigner

openssl CNA under the mitre root

CNA scorecard B 78/100 over 43 records in the last 180 days details

References

21 references

URL	Tags
https://www.openssl.org/news/secadv/20230207.txt	vendor-advisory
https://git.openssl.org/gitweb/?p=openssl.git;a=c…	patch
https://git.openssl.org/gitweb/?p=openssl.git;a=c…	patch
https://git.openssl.org/gitweb/?p=openssl.git;a=c…	patch
https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/c…
https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libr…
https://security.gentoo.org/glsa/202402-08
https://psirt.global.sonicwall.com/vuln-detail/SN…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

10 products

Vendor	Product	Version
OpenSSL	OpenSSL	Affected: 3.0.0 , < 3.0.8 (semver) Affected: 1.1.1 , < 1.1.1t (custom) Affected: 1.0.2 , < 1.0.2zg (custom)
Siemens	BFCClient	Affected: 0 , < V2.17 (custom)
Siemens	RUGGEDCOM APE1808	Affected: 0 , < * (custom)
Siemens	SCALANCE W1750D (JP)	Affected: 0 , < V8.10.0.9 (custom)
Siemens	SCALANCE W1750D (ROW)	Affected: 0 , < V8.10.0.9 (custom)
Siemens	SCALANCE W1750D (USA)	Affected: 0 , < V8.10.0.9 (custom)
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem	Affected: 0 , < V1.1 (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)

Date Public

2023-02-07 00:00

Credits

David Benjamin (Google) Hugo Landau

Show details on NVD website

JSON

To clipboard

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          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-337522.html"
          },
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-769027.html"
          },
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-028723.html"
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    ],
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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