github - ghsa-cxvc-6cjq-88vx

ghsa-cxvc-6cjq-88vx

Vulnerability from github

Published

2022-05-14 01:37

Modified

2022-05-14 01:37

Severity ?

10.0 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Details

An issue was discovered in the MQTT server in Contiki-NG before 4.2. The function parse_publish_vhdr() that parses MQTT PUBLISH messages with a variable length header uses memcpy to input data into a fixed size buffer. The allocated buffer can fit only MQTT_MAX_TOPIC_LENGTH (default 64) bytes, and a length check is missing. This could lead to Remote Code Execution via a stack-smashing attack (overwriting the function return address). Contiki-NG does not separate the MQTT server from other servers and the OS modules, so access to all memory regions is possible.

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{
  "affected": [],
  "aliases": [
    "CVE-2018-19417"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-11-21T20:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "An issue was discovered in the MQTT server in Contiki-NG before 4.2. The function parse_publish_vhdr() that parses MQTT PUBLISH messages with a variable length header uses memcpy to input data into a fixed size buffer. The allocated buffer can fit only MQTT_MAX_TOPIC_LENGTH (default 64) bytes, and a length check is missing. This could lead to Remote Code Execution via a stack-smashing attack (overwriting the function return address). Contiki-NG does not separate the MQTT server from other servers and the OS modules, so access to all memory regions is possible.",
  "id": "GHSA-cxvc-6cjq-88vx",
  "modified": "2022-05-14T01:37:00Z",
  "published": "2022-05-14T01:37:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-19417"
    },
    {
      "type": "WEB",
      "url": "https://github.com/contiki-ng/contiki-ng/issues/600"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2018-19417

Vulnerability from cvelistv5

Published

2018-11-21 19:00

Modified

2024-08-05 11:37

Severity ?

Summary

References

▼	URL	Tags
	https://github.com/contiki-ng/contiki-ng/issues/600	x_refsource_MISC

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-05T11:37:10.864Z",
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        },
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          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/contiki-ng/contiki-ng/issues/600"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "versions": [
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      ],
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        }
      ],
      "problemTypes": [
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              "lang": "en",
              "type": "text"
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      ],
      "providerMetadata": {
        "dateUpdated": "2018-11-21T19:57:01",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
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          "tags": [
            "x_refsource_MISC"
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  "cveMetadata": {
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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