« Volver al listado

CVE-2022-49638

Estado: ModificadaMedia (4.7)—

In the Linux kernel, the following vulnerability has been resolved:

icmp: Fix data-races around sysctl.

While reading icmp sysctl variables, they can be changed concurrently. So, we need to add READ_ONCE() to avoid data-races.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2022-49638",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-49638",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-10-01T19:34:08.875507Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.7,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1
      },
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.7,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4cdf507d54525842dfd9f6313fdafba039084046",
              "lessThan": "1740e5922fbb705637ae9fa5203db132fc45f9f6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4cdf507d54525842dfd9f6313fdafba039084046",
              "lessThan": "53ecd09ef2fb35fa69667ae8e414ef6b00fd3bf6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4cdf507d54525842dfd9f6313fdafba039084046",
              "lessThan": "edeec63b13c252193d626c2a48d7a2f0e7016dc2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4cdf507d54525842dfd9f6313fdafba039084046",
              "lessThan": "0cba7ca667ceb06934746ddd9833a25847bde81d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4cdf507d54525842dfd9f6313fdafba039084046",
              "lessThan": "e088ceb73c24ab4774da391d54a6426f4bfaefce",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4cdf507d54525842dfd9f6313fdafba039084046",
              "lessThan": "e2828e8c605853f71267825c9415437c0a93e4f2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4cdf507d54525842dfd9f6313fdafba039084046",
              "lessThan": "798c2cf57c63ab39c8aac24d6a3d50f4fa5eeb06",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4cdf507d54525842dfd9f6313fdafba039084046",
              "lessThan": "48d7ee321ea5182c6a70782aa186422a70e67e22",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "net/ipv4/icmp.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.18"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "3.18",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "4.9.324",
              "versionType": "semver",
              "lessThanOrEqual": "4.9.*"
            },
            {
              "status": "unaffected",
              "version": "4.14.289",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "status": "unaffected",
              "version": "4.19.253",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "status": "unaffected",
              "version": "5.4.207",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "status": "unaffected",
              "version": "5.10.132",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.56",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "5.18.13",
              "versionType": "semver",
              "lessThanOrEqual": "5.18.*"
            },
            {
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "net/ipv4/icmp.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-02-26T07:01:39.010",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0cba7ca667ceb06934746ddd9833a25847bde81d",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/1740e5922fbb705637ae9fa5203db132fc45f9f6",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/48d7ee321ea5182c6a70782aa186422a70e67e22",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/53ecd09ef2fb35fa69667ae8e414ef6b00fd3bf6",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/798c2cf57c63ab39c8aac24d6a3d50f4fa5eeb06",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e088ceb73c24ab4774da391d54a6426f4bfaefce",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e2828e8c605853f71267825c9415437c0a93e4f2",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/edeec63b13c252193d626c2a48d7a2f0e7016dc2",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nicmp: Fix data-races around sysctl.\n\nWhile reading icmp sysctl variables, they can be changed concurrently.\nSo, we need to add READ_ONCE() to avoid data-races."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: icmp: se han corregido las ejecuciones de datos en torno a sysctl. Al leer las variables sysctl de icmp, estas pueden modificarse simultáneamente. Por lo tanto, debemos agregar READ_ONCE() para evitar las ejecuciones de datos."
    }
  ],
  "lastModified": "2026-06-17T05:18:42.653",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "86D6E5BE-2946-4C39-8AB8-0AE8ED114B4D",
              "versionEndExcluding": "4.9.324",
              "versionStartIncluding": "3.18"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9209AEEF-782D-43E6-AA5C-9F5B9CD6ED11",
              "versionEndExcluding": "4.14.289",
              "versionStartIncluding": "4.10"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2B22ACD7-9025-4AD5-AD6E-A929DEC79B75",
              "versionEndExcluding": "4.19.253",
              "versionStartIncluding": "4.15"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C27A52F3-82C8-4F03-BE80-38D11CDBD503",
              "versionEndExcluding": "5.4.207",
              "versionStartIncluding": "4.20"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "46CE9FE9-22E3-45CA-8B5F-190C2CAFC5CE",
              "versionEndExcluding": "5.10.132",
              "versionStartIncluding": "5.5"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AF59CE2F-BA66-4BFD-83AB-4576F3D1B49A",
              "versionEndExcluding": "5.15.56",
              "versionStartIncluding": "5.11"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "640221A7-96EE-4B48-8FE1-BA810131789B",
              "versionEndExcluding": "5.18.13",
              "versionStartIncluding": "5.16"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A8C30C2D-F82D-4D37-AB48-D76ABFBD5377"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BF8547FC-C849-4F1B-804B-A93AE2F04A92"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F3068028-F453-4A1C-B80F-3F5609ACEF60"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2E9C0DB0-D349-489F-A3D6-B77214E93A8A"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1A0DE3B7-0FFB-45AA-9BD6-19870CA7C6FD"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "00AE778B-BAEE-49EB-9F84-003B73D7862A"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}