Vulnerability-Lookup

VAR-202208-0419

Vulnerability from variot - Updated: 2023-12-18 13:42

Contiki-NG is an open-source, cross-platform operating system for IoT devices. Because of insufficient validation of IPv6 neighbor discovery options in Contiki-NG, attackers can send neighbor solicitation packets that trigger an out-of-bounds read. The problem exists in the module os/net/ipv6/uip-nd6.c, where memory read operations from the main packet buffer, uip_buf, are not checked if they go out of bounds. In particular, this problem can occur when attempting to read the 2-byte option header and the Source Link-Layer Address Option (SLLAO). This attack requires ipv6 be enabled for the network. The problem has been patched in the develop branch of Contiki-NG. The upcoming 4.8 release of Contiki-NG will include the patch.Users unable to upgrade may apply the patch in Contiki-NG PR #1654. Contiki-NG Exists in an out-of-bounds read vulnerability.Service operation interruption (DoS) It may be in a state. A buffer error vulnerability exists in Contiki-NG versions prior to 4.8. This vulnerability can be exploited by an attacker to send a request packet that triggers an out-of-bounds read

Show details on source website

JSON

To clipboard

{
  "@context": {
    "@vocab": "https://www.variotdbs.pl/ref/VARIoTentry#",
    "affected_products": {
      "@id": "https://www.variotdbs.pl/ref/affected_products"
    },
    "configurations": {
      "@id": "https://www.variotdbs.pl/ref/configurations"
    },
    "credits": {
      "@id": "https://www.variotdbs.pl/ref/credits"
    },
    "cvss": {
      "@id": "https://www.variotdbs.pl/ref/cvss/"
    },
    "description": {
      "@id": "https://www.variotdbs.pl/ref/description/"
    },
    "exploit_availability": {
      "@id": "https://www.variotdbs.pl/ref/exploit_availability/"
    },
    "external_ids": {
      "@id": "https://www.variotdbs.pl/ref/external_ids/"
    },
    "iot": {
      "@id": "https://www.variotdbs.pl/ref/iot/"
    },
    "iot_taxonomy": {
      "@id": "https://www.variotdbs.pl/ref/iot_taxonomy/"
    },
    "patch": {
      "@id": "https://www.variotdbs.pl/ref/patch/"
    },
    "problemtype_data": {
      "@id": "https://www.variotdbs.pl/ref/problemtype_data/"
    },
    "references": {
      "@id": "https://www.variotdbs.pl/ref/references/"
    },
    "sources": {
      "@id": "https://www.variotdbs.pl/ref/sources/"
    },
    "sources_release_date": {
      "@id": "https://www.variotdbs.pl/ref/sources_release_date/"
    },
    "sources_update_date": {
      "@id": "https://www.variotdbs.pl/ref/sources_update_date/"
    },
    "threat_type": {
      "@id": "https://www.variotdbs.pl/ref/threat_type/"
    },
    "title": {
      "@id": "https://www.variotdbs.pl/ref/title/"
    },
    "type": {
      "@id": "https://www.variotdbs.pl/ref/type/"
    }
  },
  "@id": "https://www.variotdbs.pl/vuln/VAR-202208-0419",
  "affected_products": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/affected_products#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        },
        "@id": "https://www.variotdbs.pl/ref/sources"
      }
    },
    "data": [
      {
        "model": "contiki-ng",
        "scope": "lt",
        "trust": 1.0,
        "vendor": "contiki ng",
        "version": "4.8"
      },
      {
        "model": "contiki-ng",
        "scope": null,
        "trust": 0.8,
        "vendor": "contiki ng",
        "version": null
      },
      {
        "model": "contiki-ng",
        "scope": "eq",
        "trust": 0.8,
        "vendor": "contiki ng",
        "version": "4.8"
      },
      {
        "model": "contiki-ng",
        "scope": "eq",
        "trust": 0.8,
        "vendor": "contiki ng",
        "version": null
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2022-014246"
      },
      {
        "db": "NVD",
        "id": "CVE-2022-35926"
      }
    ]
  },
  "configurations": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/configurations#",
      "children": {
        "@container": "@list"
      },
      "cpe_match": {
        "@container": "@list"
      },
      "data": {
        "@container": "@list"
      },
      "nodes": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "4.8",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2022-35926"
      }
    ]
  },
  "cve": "CVE-2022-35926",
  "cvss": {
    "@context": {
      "cvssV2": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV2#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/cvssV2"
      },
      "cvssV3": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV3#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/cvssV3/"
      },
      "severity": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/cvss/severity#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/severity"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        },
        "@id": "https://www.variotdbs.pl/ref/sources"
      }
    },
    "data": [
      {
        "cvssV2": [],
        "cvssV3": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "author": "NVD",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "exploitabilityScore": 3.9,
            "impactScore": 3.6,
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "trust": 1.0,
            "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"
          },
          {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "author": "security-advisories@github.com",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "exploitabilityScore": 2.2,
            "impactScore": 3.6,
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "trust": 1.0,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          {
            "attackComplexity": "Low",
            "attackVector": "Network",
            "author": "NVD",
            "availabilityImpact": "High",
            "baseScore": 7.5,
            "baseSeverity": "High",
            "confidentialityImpact": "None",
            "exploitabilityScore": null,
            "id": "CVE-2022-35926",
            "impactScore": null,
            "integrityImpact": "None",
            "privilegesRequired": "None",
            "scope": "Unchanged",
            "trust": 0.8,
            "userInteraction": "None",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          }
        ],
        "severity": [
          {
            "author": "NVD",
            "id": "CVE-2022-35926",
            "trust": 1.8,
            "value": "HIGH"
          },
          {
            "author": "security-advisories@github.com",
            "id": "CVE-2022-35926",
            "trust": 1.0,
            "value": "MEDIUM"
          },
          {
            "author": "CNNVD",
            "id": "CNNVD-202208-2178",
            "trust": 0.6,
            "value": "HIGH"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2022-014246"
      },
      {
        "db": "NVD",
        "id": "CVE-2022-35926"
      },
      {
        "db": "NVD",
        "id": "CVE-2022-35926"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202208-2178"
      }
    ]
  },
  "description": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/description#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Contiki-NG is an open-source, cross-platform operating system for IoT devices. Because of insufficient validation of IPv6 neighbor discovery options in Contiki-NG, attackers can send neighbor solicitation packets that trigger an out-of-bounds read. The problem exists in the module os/net/ipv6/uip-nd6.c, where memory read operations from the main packet buffer, \u003ccode\u003euip_buf\u003c/code\u003e, are not checked if they go out of bounds. In particular, this problem can occur when attempting to read the 2-byte option header and the Source Link-Layer Address Option (SLLAO). This attack requires ipv6 be enabled for the network. The problem has been patched in the develop branch of Contiki-NG. The upcoming 4.8 release of Contiki-NG will include the patch.Users unable to upgrade may apply the patch in Contiki-NG PR #1654. Contiki-NG Exists in an out-of-bounds read vulnerability.Service operation interruption (DoS) It may be in a state. \nA buffer error vulnerability exists in Contiki-NG versions prior to 4.8. This vulnerability can be exploited by an attacker to send a request packet that triggers an out-of-bounds read",
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2022-35926"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2022-014246"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202208-2178"
      },
      {
        "db": "VULMON",
        "id": "CVE-2022-35926"
      }
    ],
    "trust": 2.25
  },
  "external_ids": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/external_ids#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "db": "NVD",
        "id": "CVE-2022-35926",
        "trust": 3.3
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2022-014246",
        "trust": 0.8
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202208-2178",
        "trust": 0.6
      },
      {
        "db": "VULMON",
        "id": "CVE-2022-35926",
        "trust": 0.1
      }
    ],
    "sources": [
      {
        "db": "VULMON",
        "id": "CVE-2022-35926"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2022-014246"
      },
      {
        "db": "NVD",
        "id": "CVE-2022-35926"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202208-2178"
      }
    ]
  },
  "id": "VAR-202208-0419",
  "iot": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/iot#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": true,
    "sources": [
      {
        "db": "VARIoT devices database",
        "id": null
      }
    ],
    "trust": 0.48177084
  },
  "last_update_date": "2023-12-18T13:42:01.053000Z",
  "patch": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/patch#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "title": "Contiki-NG Buffer error vulnerability fix",
        "trust": 0.6,
        "url": "http://www.cnnvd.org.cn/web/xxk/bdxqbyid.tag?id=203977"
      }
    ],
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202208-2178"
      }
    ]
  },
  "problemtype_data": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "problemtype": "CWE-125",
        "trust": 1.0
      },
      {
        "problemtype": "Out-of-bounds read (CWE-125) [ others ]",
        "trust": 0.8
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2022-014246"
      },
      {
        "db": "NVD",
        "id": "CVE-2022-35926"
      }
    ]
  },
  "references": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/references#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "trust": 2.5,
        "url": "https://github.com/contiki-ng/contiki-ng/security/advisories/ghsa-4hpq-4f53-w386"
      },
      {
        "trust": 2.5,
        "url": "https://github.com/contiki-ng/contiki-ng/pull/1654/commits/a4597001d50a04f4b9c78f323ba731e2f979802c"
      },
      {
        "trust": 2.5,
        "url": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2fv4.8"
      },
      {
        "trust": 1.9,
        "url": "https://github.com/contiki-ng/contiki-ng/pull/1654"
      },
      {
        "trust": 1.4,
        "url": "https://nvd.nist.gov/vuln/detail/cve-2022-35926"
      },
      {
        "trust": 0.6,
        "url": "https://cxsecurity.com/cveshow/cve-2022-35926/"
      },
      {
        "trust": 0.1,
        "url": "https://cwe.mitre.org/data/definitions/125.html"
      },
      {
        "trust": 0.1,
        "url": "https://nvd.nist.gov"
      }
    ],
    "sources": [
      {
        "db": "VULMON",
        "id": "CVE-2022-35926"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2022-014246"
      },
      {
        "db": "NVD",
        "id": "CVE-2022-35926"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202208-2178"
      }
    ]
  },
  "sources": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "db": "VULMON",
        "id": "CVE-2022-35926"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2022-014246"
      },
      {
        "db": "NVD",
        "id": "CVE-2022-35926"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202208-2178"
      }
    ]
  },
  "sources_release_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2022-08-04T00:00:00",
        "db": "VULMON",
        "id": "CVE-2022-35926"
      },
      {
        "date": "2023-09-15T00:00:00",
        "db": "JVNDB",
        "id": "JVNDB-2022-014246"
      },
      {
        "date": "2022-08-04T21:15:08.013000",
        "db": "NVD",
        "id": "CVE-2022-35926"
      },
      {
        "date": "2022-08-04T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202208-2178"
      }
    ]
  },
  "sources_update_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2022-08-04T00:00:00",
        "db": "VULMON",
        "id": "CVE-2022-35926"
      },
      {
        "date": "2023-09-15T08:07:00",
        "db": "JVNDB",
        "id": "JVNDB-2022-014246"
      },
      {
        "date": "2022-08-11T14:14:18.087000",
        "db": "NVD",
        "id": "CVE-2022-35926"
      },
      {
        "date": "2022-08-12T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202208-2178"
      }
    ]
  },
  "threat_type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/threat_type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "remote",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202208-2178"
      }
    ],
    "trust": 0.6
  },
  "title": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/title#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Contiki-NG\u00a0 Out-of-bounds read vulnerability in",
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2022-014246"
      }
    ],
    "trust": 0.8
  },
  "type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "buffer error",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202208-2178"
      }
    ],
    "trust": 0.6
  }
}

CVE-2022-35926 (GCVE-0-2022-35926)

Vulnerability from cvelistv5 – Published: 2022-08-04 20:30 – Updated: 2025-04-23 17:53

Title

Out-of-bounds read in IPv6 neighbor solicitation in Contiki-NG

Summary

Contiki-NG is an open-source, cross-platform operating system for IoT devices. Because of insufficient validation of IPv6 neighbor discovery options in Contiki-NG, attackers can send neighbor solicitation packets that trigger an out-of-bounds read. The problem exists in the module os/net/ipv6/uip-nd6.c, where memory read operations from the main packet buffer, <code>uip_buf</code>, are not checked if they go out of bounds. In particular, this problem can occur when attempting to read the 2-byte option header and the Source Link-Layer Address Option (SLLAO). This attack requires ipv6 be enabled for the network. The problem has been patched in the develop branch of Contiki-NG. The upcoming 4.8 release of Contiki-NG will include the patch.Users unable to upgrade may apply the patch in Contiki-NG PR #1654.

Severity

5.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 14:02 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

GitHub_M mitre root Scorecard

References

4 references

URL	Tags
https://github.com/contiki-ng/contiki-ng/releases…	x_refsource_MISC
https://github.com/contiki-ng/contiki-ng/security…	x_refsource_CONFIRM
https://github.com/contiki-ng/contiki-ng/pull/1654	x_refsource_MISC
https://github.com/contiki-ng/contiki-ng/pull/165…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
contiki-ng	contiki-ng	Affected: < 4.8

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T09:51:59.050Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-4hpq-4f53-w386"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/contiki-ng/contiki-ng/pull/1654"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/contiki-ng/contiki-ng/pull/1654/commits/a4597001d50a04f4b9c78f323ba731e2f979802c"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-35926",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T14:02:20.464945Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T17:53:28.103Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "contiki-ng",
          "vendor": "contiki-ng",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 4.8"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Contiki-NG is an open-source, cross-platform operating system for IoT devices. Because of insufficient validation of IPv6 neighbor discovery options in Contiki-NG, attackers can send neighbor solicitation packets that trigger an out-of-bounds read. The problem exists in the module os/net/ipv6/uip-nd6.c, where memory read operations from the main packet buffer, \u003ccode\u003euip_buf\u003c/code\u003e, are not checked if they go out of bounds. In particular, this problem can occur when attempting to read the 2-byte option header and the Source Link-Layer Address Option (SLLAO). This attack requires ipv6 be enabled for the network. The problem has been patched in the develop branch of Contiki-NG. The upcoming 4.8 release of Contiki-NG will include the patch.Users unable to upgrade may apply the patch in Contiki-NG PR #1654."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125: Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-08-04T20:30:18.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-4hpq-4f53-w386"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/contiki-ng/contiki-ng/pull/1654"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/contiki-ng/contiki-ng/pull/1654/commits/a4597001d50a04f4b9c78f323ba731e2f979802c"
        }
      ],
      "source": {
        "advisory": "GHSA-4hpq-4f53-w386",
        "discovery": "UNKNOWN"
      },
      "title": "Out-of-bounds read in IPv6 neighbor solicitation in Contiki-NG",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2022-35926",
          "STATE": "PUBLIC",
          "TITLE": "Out-of-bounds read in IPv6 neighbor solicitation in Contiki-NG"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "contiki-ng",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 4.8"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "contiki-ng"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Contiki-NG is an open-source, cross-platform operating system for IoT devices. Because of insufficient validation of IPv6 neighbor discovery options in Contiki-NG, attackers can send neighbor solicitation packets that trigger an out-of-bounds read. The problem exists in the module os/net/ipv6/uip-nd6.c, where memory read operations from the main packet buffer, \u003ccode\u003euip_buf\u003c/code\u003e, are not checked if they go out of bounds. In particular, this problem can occur when attempting to read the 2-byte option header and the Source Link-Layer Address Option (SLLAO). This attack requires ipv6 be enabled for the network. The problem has been patched in the develop branch of Contiki-NG. The upcoming 4.8 release of Contiki-NG will include the patch.Users unable to upgrade may apply the patch in Contiki-NG PR #1654."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-125: Out-of-bounds Read"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8",
              "refsource": "MISC",
              "url": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8"
            },
            {
              "name": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-4hpq-4f53-w386",
              "refsource": "CONFIRM",
              "url": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-4hpq-4f53-w386"
            },
            {
              "name": "https://github.com/contiki-ng/contiki-ng/pull/1654",
              "refsource": "MISC",
              "url": "https://github.com/contiki-ng/contiki-ng/pull/1654"
            },
            {
              "name": "https://github.com/contiki-ng/contiki-ng/pull/1654/commits/a4597001d50a04f4b9c78f323ba731e2f979802c",
              "refsource": "MISC",
              "url": "https://github.com/contiki-ng/contiki-ng/pull/1654/commits/a4597001d50a04f4b9c78f323ba731e2f979802c"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-4hpq-4f53-w386",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2022-35926",
    "datePublished": "2022-08-04T20:30:18.000Z",
    "dateReserved": "2022-07-15T00:00:00.000Z",
    "dateUpdated": "2025-04-23T17:53:28.103Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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.

Action not permitted

VAR-202208-0419

CVE-2022-35926 (GCVE-0-2022-35926)

Tags

Sightings

Nomenclature

Related by attack behaviour