FKIE_CVE-2021-47611

Vulnerability from fkie_nvd - Published: 2024-06-19 15:15 - Updated: 2026-06-17 04:18
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: mac80211: validate extended element ID is present Before attempting to parse an extended element, verify that the extended element ID is present.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/03029bb044ccee60adbc93e70713f3ae58abc3a1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/768c0b19b50665e337c96858aa2b7928d6dcf756Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7fd214fc7f2ee3a89f91e717e3cfad55f5a27045Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a19cf6844b509d44ecbd536f33d314d91ecdd2b5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c62b16f98688ae7bc0ab23a6490481f4ce9b3a49Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/03029bb044ccee60adbc93e70713f3ae58abc3a1Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/768c0b19b50665e337c96858aa2b7928d6dcf756Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7fd214fc7f2ee3a89f91e717e3cfad55f5a27045Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a19cf6844b509d44ecbd536f33d314d91ecdd2b5Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c62b16f98688ae7bc0ab23a6490481f4ce9b3a49Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.16
linux linux_kernel 5.16
linux linux_kernel 5.16
linux linux_kernel 5.16
linux linux_kernel 5.16
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/util.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "03029bb044ccee60adbc93e70713f3ae58abc3a1",
              "status": "affected",
              "version": "41cbb0f5a29592874355e4159489eb08337cd50e",
              "versionType": "git"
            },
            {
              "lessThan": "a19cf6844b509d44ecbd536f33d314d91ecdd2b5",
              "status": "affected",
              "version": "41cbb0f5a29592874355e4159489eb08337cd50e",
              "versionType": "git"
            },
            {
              "lessThan": "7fd214fc7f2ee3a89f91e717e3cfad55f5a27045",
              "status": "affected",
              "version": "41cbb0f5a29592874355e4159489eb08337cd50e",
              "versionType": "git"
            },
            {
              "lessThan": "c62b16f98688ae7bc0ab23a6490481f4ce9b3a49",
              "status": "affected",
              "version": "41cbb0f5a29592874355e4159489eb08337cd50e",
              "versionType": "git"
            },
            {
              "lessThan": "768c0b19b50665e337c96858aa2b7928d6dcf756",
              "status": "affected",
              "version": "41cbb0f5a29592874355e4159489eb08337cd50e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/util.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.19"
            },
            {
              "lessThan": "4.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.222",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.168",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7F8B745E-51F4-4477-BF7A-D3ACB37D2D70",
              "versionEndExcluding": "4.19.222",
              "versionStartIncluding": "4.19",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "195EBAA1-4CCE-4898-9351-F4A0DBCAA022",
              "versionEndExcluding": "5.4.168",
              "versionStartIncluding": "4.20",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A657B2D0-5B9D-42BE-A3BF-228DBC1B057C",
              "versionEndExcluding": "5.10.88",
              "versionStartIncluding": "5.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "11274E95-438A-449A-B100-01B2B0046669",
              "versionEndExcluding": "5.15.11",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "357AA433-37E8-4323-BFB2-3038D6E4B414",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "A73429BA-C2D9-4D0C-A75F-06A1CA8B3983",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "F621B5E3-E99D-49E7-90B9-EC3B77C95383",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "F7BFDCAA-1650-49AA-8462-407DD593F94F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc5:*:*:*:*:*:*",
              "matchCriteriaId": "6EC9882F-866D-4ACB-8FBC-213D8D8436C8",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmac80211: validate extended element ID is present\n\nBefore attempting to parse an extended element, verify that\nthe extended element ID is present."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: mac80211: validar que el ID del elemento extendido est\u00e9 presente Antes de intentar analizar un elemento extendido, verifique que el ID del elemento extendido est\u00e9 presente."
    }
  ],
  "id": "CVE-2021-47611",
  "lastModified": "2026-06-17T04:18:09.670",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-47611",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-06-20T13:48:17.643512Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-06-19T15:15:55.650",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/03029bb044ccee60adbc93e70713f3ae58abc3a1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/768c0b19b50665e337c96858aa2b7928d6dcf756"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      ],
      "url": "https://git.kernel.org/stable/c/7fd214fc7f2ee3a89f91e717e3cfad55f5a27045"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/a19cf6844b509d44ecbd536f33d314d91ecdd2b5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/c62b16f98688ae7bc0ab23a6490481f4ce9b3a49"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/03029bb044ccee60adbc93e70713f3ae58abc3a1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/768c0b19b50665e337c96858aa2b7928d6dcf756"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/7fd214fc7f2ee3a89f91e717e3cfad55f5a27045"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/a19cf6844b509d44ecbd536f33d314d91ecdd2b5"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c62b16f98688ae7bc0ab23a6490481f4ce9b3a49"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "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

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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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • 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.


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