FKIE_CVE-2026-43988

Vulnerability from fkie_nvd - Published: 2026-05-26 22:16 - Updated: 2026-07-24 11:10
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Vanetza is an open-source implementation of the ETSI C-ITS protocol suite. In 26.02 and earlier, a denial-of-service vulnerability was identified in the ASN.1/OER parsing pipeline of Vanetza. When processing malformed network packets containing corrupted ASN.1/OER structures (e.g., invalid length fields or malformed certificate encoding), the ASN.1 wrapper (asn1c_wrapper.cpp) raises a std::runtime_error. This exception is not caught at the parsing boundary and propagates to std::terminate, resulting in process termination. This vulnerability is fixed with commit 62dfe58a8342512b6e1947d75821402ada524f1a.
References
security-advisories@github.comhttps://github.com/riebl/vanetza/commit/62dfe58a8342512b6e1947d75821402ada524f1a
security-advisories@github.comhttps://github.com/riebl/vanetza/security/advisories/GHSA-j6cj-rp87-mfrx
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/riebl/vanetza/security/advisories/GHSA-j6cj-rp87-mfrx
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "vanetza",
          "vendor": "riebl",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 62dfe58a8342512b6e1947d75821402ada524f1a"
            },
            {
              "status": "affected",
              "version": "\u003c= 26.02"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Vanetza is an open-source implementation of the ETSI C-ITS protocol suite. In 26.02 and earlier, a denial-of-service vulnerability was identified in the ASN.1/OER parsing pipeline of Vanetza. When processing malformed network packets containing corrupted ASN.1/OER structures (e.g., invalid length fields or malformed certificate encoding), the ASN.1 wrapper (asn1c_wrapper.cpp) raises a std::runtime_error. This exception is not caught at the parsing boundary and propagates to std::terminate, resulting in process termination. This vulnerability is fixed with commit 62dfe58a8342512b6e1947d75821402ada524f1a."
    },
    {
      "lang": "es",
      "value": "Vanetza es una implementaci\u00f3n de c\u00f3digo abierto de la suite de protocolos ETSI C-ITS. En la versi\u00f3n 26.02 y anteriores, se identific\u00f3 una vulnerabilidad de denegaci\u00f3n de servicio en la cadena de procesamiento (pipeline) de an\u00e1lisis ASN.1/OER de Vanetza. Al procesar paquetes de red malformados que contienen estructuras ASN.1/OER corruptas (p. ej., campos de longitud no v\u00e1lidos o codificaci\u00f3n de certificado malformada), el \u0027wrapper\u0027 ASN.1 (asn1c_wrapper.cpp) lanza un std::runtime_error. Esta excepci\u00f3n no es capturada en el l\u00edmite de an\u00e1lisis y se propaga a std::terminate, lo que resulta en la terminaci\u00f3n del proceso. Esta vulnerabilidad se corrige con el \u0027commit\u0027 62dfe58a8342512b6e1947d75821402ada524f1a."
    }
  ],
  "id": "CVE-2026-43988",
  "lastModified": "2026-07-24T11:10:00.170",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-43988",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-27T13:03:22.385833Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-26T22:16:42.303",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/riebl/vanetza/commit/62dfe58a8342512b6e1947d75821402ada524f1a"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/riebl/vanetza/security/advisories/GHSA-j6cj-rp87-mfrx"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/riebl/vanetza/security/advisories/GHSA-j6cj-rp87-mfrx"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-248"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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