FKIE_CVE-2021-29630

Vulnerability from fkie_nvd - Published: 2021-08-30 19:15 - Updated: 2026-06-17 03:48
Severity
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In FreeBSD 13.0-STABLE before n246938-0729ba2f49c9, 12.2-STABLE before r370383, 11.4-STABLE before r370381, 13.0-RELEASE before p4, 12.2-RELEASE before p10, and 11.4-RELEASE before p13, the ggatec daemon does not validate the size of a response before writing it to a fixed-sized buffer allowing a malicious attacker in a privileged network position to overwrite the stack of ggatec and potentially execute arbitrary code.
References
secteam@freebsd.orghttps://security.FreeBSD.org/advisories/FreeBSD-SA-21:14.ggatec.ascPatch, Vendor Advisory
secteam@freebsd.orghttps://security.netapp.com/advisory/ntap-20210923-0005/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.FreeBSD.org/advisories/FreeBSD-SA-21:14.ggatec.ascPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210923-0005/Third Party Advisory
Impacted products
Vendor Product Version
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 12.2
freebsd freebsd 12.2
freebsd freebsd 12.2
freebsd freebsd 12.2
freebsd freebsd 12.2
freebsd freebsd 12.2
freebsd freebsd 12.2
freebsd freebsd 12.2
freebsd freebsd 12.2
freebsd freebsd 12.2
freebsd freebsd 12.2
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "FreeBSD",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "FreeBSD 13.0-RELEASE before p4, 12.2-RELEASE before p10, 11.4-RELEASE before p13"
            }
          ]
        }
      ],
      "source": "secteam@freebsd.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "vulnerable": true
            },
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              "vulnerable": true
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              "vulnerable": true
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            {
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          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In FreeBSD 13.0-STABLE before n246938-0729ba2f49c9, 12.2-STABLE before r370383, 11.4-STABLE before r370381, 13.0-RELEASE before p4, 12.2-RELEASE before p10, and 11.4-RELEASE before p13, the ggatec daemon does not validate the size of a response before writing it to a fixed-sized buffer allowing a malicious attacker in a privileged network position to overwrite the stack of ggatec and potentially execute arbitrary code."
    },
    {
      "lang": "es",
      "value": "En FreeBSD versiones 13.0-STABLE anteriores a n246938-0729ba2f49c9, 12.2-STABLE anteriores a r370383, 11.4-STABLE anteriores a r370381, 13.0-RELEASE anteriores a p4, 12.2-RELEASE anteriores a p10, y 11. 4-RELEASE anteriores a p13, el demonio ggatec no comprueba el tama\u00f1o de una respuesta antes de escribirla en un b\u00fafer de tama\u00f1o fijo, permitiendo a un atacante malicioso en una posici\u00f3n de red privilegiada sobrescribir la pila de ggatec y ejecutar potencialmente c\u00f3digo arbitrario."
    }
  ],
  "id": "CVE-2021-29630",
  "lastModified": "2026-06-17T03:48:03.690",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "HIGH",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.6,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:H/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 4.9,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-08-30T19:15:08.610",
  "references": [
    {
      "source": "secteam@freebsd.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-21:14.ggatec.asc"
    },
    {
      "source": "secteam@freebsd.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20210923-0005/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-21:14.ggatec.asc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20210923-0005/"
    }
  ],
  "sourceIdentifier": "secteam@freebsd.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "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

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.


Detection rules are retrieved from Rulezet.