FKIE_CVE-2021-29632

Vulnerability from fkie_nvd - Published: 2022-01-18 17:15 - Updated: 2026-06-17 03:48
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
In FreeBSD 13.0-STABLE before n247428-9352de39c3dc, 12.2-STABLE before r370674, 13.0-RELEASE before p6, and 12.2-RELEASE before p12, certain conditions involving use of the highlight buffer while text is scrolling on the console, console data may overwrite data structures associated with the system console or other kernel memory.
References
secteam@freebsd.orghttps://security.freebsd.org/advisories/FreeBSD-SA-22:01.vt.ascMitigation, Vendor Advisory
secteam@freebsd.orghttps://security.netapp.com/advisory/ntap-20220217-0004/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.freebsd.org/advisories/FreeBSD-SA-22:01.vt.ascMitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20220217-0004/Third Party Advisory
Impacted products
Vendor Product Version
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 12.2
freebsd freebsd 12.2
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
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 p6, 12.2-RELEASE before p12"
            }
          ]
        }
      ],
      "source": "secteam@freebsd.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:freebsd:freebsd:12.2:-:*:*:*:*:*:*",
              "matchCriteriaId": "73D9C08B-8F5B-40C4-A5BD-B00D2E4C012D",
              "vulnerable": true
            },
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              "matchCriteriaId": "04A52071-1307-4038-ACDF-F69954E95A39",
              "vulnerable": true
            },
            {
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              "vulnerable": true
            },
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              "vulnerable": true
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              "matchCriteriaId": "3A371BAE-2BBE-404C-BCB5-E268A8AF847B",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "54A487B1-E5CE-4C76-87E8-518D24C5D86D",
              "vulnerable": true
            },
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              "vulnerable": true
            },
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              "vulnerable": true
            },
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            },
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              "matchCriteriaId": "0C33002B-9958-4714-A734-066F36DE9040",
              "vulnerable": true
            },
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              "criteria": "cpe:2.3:o:freebsd:freebsd:12.2:p8:*:*:*:*:*:*",
              "matchCriteriaId": "562CEDBA-8BAE-4886-8AA3-AFF8E7F5A9C6",
              "vulnerable": true
            },
            {
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              "vulnerable": true
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              "vulnerable": true
            },
            {
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              "matchCriteriaId": "556111A1-C236-4DF6-9438-F9C874451A58",
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              "vulnerable": true
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              "vulnerable": true
            },
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              "vulnerable": true
            },
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              "vulnerable": true
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              "vulnerable": true
            },
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              "criteria": "cpe:2.3:o:freebsd:freebsd:13.0:rc5-p1:*:*:*:*:*:*",
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              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In FreeBSD 13.0-STABLE before n247428-9352de39c3dc, 12.2-STABLE before r370674, 13.0-RELEASE before p6, and 12.2-RELEASE before p12, certain conditions involving use of the highlight buffer while text is scrolling on the console, console data may overwrite data structures associated with the system console or other kernel memory."
    },
    {
      "lang": "es",
      "value": "En FreeBSD versi\u00f3n 13.0-STABLE anteriores a n247428-9352de39c3dc, 12.2-STABLE anteriores a r370674, 13.0-RELEASE anteriores a p6 y 12.2-RELEASE anteriores a p12, en determinadas condiciones que implican el uso del b\u00fafer de resaltado mientras el texto se desplaza en la consola, los datos de la consola pueden sobrescribir estructuras de datos asociadas con la consola del sistema u otra memoria del kernel"
    }
  ],
  "id": "CVE-2021-29632",
  "lastModified": "2026-06-17T03:48:03.913",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "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": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2022-01-18T17:15:08.310",
  "references": [
    {
      "source": "secteam@freebsd.org",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://security.freebsd.org/advisories/FreeBSD-SA-22:01.vt.asc"
    },
    {
      "source": "secteam@freebsd.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20220217-0004/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://security.freebsd.org/advisories/FreeBSD-SA-22:01.vt.asc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20220217-0004/"
    }
  ],
  "sourceIdentifier": "secteam@freebsd.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "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.