FKIE_CVE-2019-9183

Vulnerability from fkie_nvd - Published: 2020-04-23 15:15 - Updated: 2026-06-17 02:43
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
An issue was discovered in Contiki-NG through 4.3 and Contiki through 3.0. A buffer overflow is present due to an integer underflow during 6LoWPAN fragment processing in the face of truncated fragments in os/net/ipv6/sicslowpan.c. This results in accesses of unmapped memory, crashing the application. An attacker can cause a denial-of-service via a crafted 6LoWPAN frame.
References
cve@mitre.orghttps://github.com/contiki-ng/contiki-ng/pull/972Patch, Third Party Advisory
cve@mitre.orghttps://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.4Release Notes, Third Party Advisory
cve@mitre.orghttps://www.usenix.org/system/files/sec20summer_clements_prepub.pdfTechnical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/contiki-ng/contiki-ng/pull/972Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.4Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.usenix.org/system/files/sec20summer_clements_prepub.pdfTechnical Description, Third Party Advisory
Impacted products
Vendor Product Version
contiki-ng contiki-ng *
contiki-os contiki *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "28D4F0C3-E4E7-4DDC-8D22-288E0BE50E15",
              "versionEndIncluding": "4.3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:contiki-os:contiki:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EBD2BE71-F851-4136-816D-EF61154FD2C4",
              "versionEndIncluding": "3.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Contiki-NG through 4.3 and Contiki through 3.0. A buffer overflow is present due to an integer underflow during 6LoWPAN fragment processing in the face of truncated fragments in os/net/ipv6/sicslowpan.c. This results in accesses of unmapped memory, crashing the application. An attacker can cause a denial-of-service via a crafted 6LoWPAN frame."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 un problema en Contiki-NG a trav\u00e9s de 4.3 y Contiki a trav\u00e9s de 3.0. Existe un desbordamiento del b\u00fafer debido a un desbordamiento de enteros durante el procesamiento de fragmentos 6LoWPAN frente a fragmentos truncados en os / net / ipv6 / sicslowpan.c. Esto da como resultado accesos de memoria no asignada, que bloquea la aplicaci\u00f3n. Un atacante puede causar una denegaci\u00f3n de servicio a trav\u00e9s de un marco 6LoWPAN especialmente dise\u00f1ado."
    }
  ],
  "id": "CVE-2019-9183",
  "lastModified": "2026-06-17T02:43:18.260",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "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": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-04-23T15:15:13.950",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/contiki-ng/contiki-ng/pull/972"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.4"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Technical Description",
        "Third Party Advisory"
      ],
      "url": "https://www.usenix.org/system/files/sec20summer_clements_prepub.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/contiki-ng/contiki-ng/pull/972"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.4"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Technical Description",
        "Third Party Advisory"
      ],
      "url": "https://www.usenix.org/system/files/sec20summer_clements_prepub.pdf"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-191"
        },
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
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  • 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.



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.