github - ghsa-8mpq-mw74-r6q5

GHSA-8MPQ-MW74-R6Q5

Vulnerability from github – Published: 2022-05-13 01:08 – Updated: 2022-05-13 01:08

Details

An issue was discovered in the MQTT input plugin in Fluent Bit through 1.0.4. When this plugin acts as an MQTT broker (server), it mishandles incoming network messages. After processing a crafted packet, the plugin's mqtt_packet_drop function (in /plugins/in_mqtt/mqtt_prot.c) executes the memmove() function with a negative size parameter. That leads to a crash of the whole Fluent Bit server via a SIGSEGV signal.

Severity ?

7.5 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2019-9749"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-681"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-03-13T19:29:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in the MQTT input plugin in Fluent Bit through 1.0.4. When this plugin acts as an MQTT broker (server), it mishandles incoming network messages. After processing a crafted packet, the plugin\u0027s mqtt_packet_drop function (in /plugins/in_mqtt/mqtt_prot.c) executes the memmove() function with a negative size parameter. That leads to a crash of the whole Fluent Bit server via a SIGSEGV signal.",
  "id": "GHSA-8mpq-mw74-r6q5",
  "modified": "2022-05-13T01:08:20Z",
  "published": "2022-05-13T01:08:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9749"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fluent/fluent-bit/issues/1135"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2019-9749 (GCVE-0-2019-9749)

Vulnerability from cvelistv5 – Published: 2019-03-13 19:00 – Updated: 2024-09-16 22:29

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

https://github.com/fluent/fluent-bit/issues/1135

x_refsource_MISC

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JSON

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              "x_transferred"
            ],
            "url": "https://github.com/fluent/fluent-bit/issues/1135"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "versions": [
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        }
      ],
      "problemTypes": [
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        "dateUpdated": "2019-03-13T19:00:00Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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          ],
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Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-8MPQ-MW74-R6Q5

CVE-2019-9749 (GCVE-0-2019-9749)

Tags

Sightings

Nomenclature