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FKIE_CVE-2022-50001

Vulnerability from fkie_nvd - Published: 2025-06-18 11:15 - Updated: 2026-06-17 05:22
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: netfilter: nft_tproxy: restrict to prerouting hook TPROXY is only allowed from prerouting, but nft_tproxy doesn't check this. This fixes a crash (null dereference) when using tproxy from e.g. output.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0b21edf4cc13516716848e0a4fdf726aa2a62cd9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/18bbc3213383a82b05383827f4b1b882e3f0a5a5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/343fed6b0daeb528ae5c9d4d84d9ff763ac95619Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/83ef55c4281f1b4c6bd4457c2e96ccd1c9e80200Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9a1d92cbeac3335fee99fa865b8c5b0f2e71a8f7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eaba3f9b672c3a3f820da8ee9584b9520674eafaPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.0
linux linux_kernel 6.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/nft_tproxy.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0b21edf4cc13516716848e0a4fdf726aa2a62cd9",
              "status": "affected",
              "version": "4ed8eb6570a49931c705512060acd50058d61616",
              "versionType": "git"
            },
            {
              "lessThan": "83ef55c4281f1b4c6bd4457c2e96ccd1c9e80200",
              "status": "affected",
              "version": "4ed8eb6570a49931c705512060acd50058d61616",
              "versionType": "git"
            },
            {
              "lessThan": "eaba3f9b672c3a3f820da8ee9584b9520674eafa",
              "status": "affected",
              "version": "4ed8eb6570a49931c705512060acd50058d61616",
              "versionType": "git"
            },
            {
              "lessThan": "9a1d92cbeac3335fee99fa865b8c5b0f2e71a8f7",
              "status": "affected",
              "version": "4ed8eb6570a49931c705512060acd50058d61616",
              "versionType": "git"
            },
            {
              "lessThan": "343fed6b0daeb528ae5c9d4d84d9ff763ac95619",
              "status": "affected",
              "version": "4ed8eb6570a49931c705512060acd50058d61616",
              "versionType": "git"
            },
            {
              "lessThan": "18bbc3213383a82b05383827f4b1b882e3f0a5a5",
              "status": "affected",
              "version": "4ed8eb6570a49931c705512060acd50058d61616",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/nft_tproxy.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": "4.19.273",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.232",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.169",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.95",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EB050C64-6064-4F24-912B-57D758ADDBAB",
              "versionEndExcluding": "4.19.273",
              "versionStartIncluding": "4.19",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9C6E0696-3702-4B0C-A102-2753BDC8C3D3",
              "versionEndExcluding": "5.4.232",
              "versionStartIncluding": "4.20",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D8E6784B-A00F-47F0-882B-7209E1F374B7",
              "versionEndExcluding": "5.10.169",
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            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "5.15.95",
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              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "89E99903-E16D-475D-954B-2BAC46C98262",
              "versionEndExcluding": "5.19.6",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "E8BD11A3-8643-49B6-BADE-5029A0117325",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "5F0AD220-F6A9-4012-8636-155F1B841FAD",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_tproxy: restrict to prerouting hook\n\nTPROXY is only allowed from prerouting, but nft_tproxy doesn\u0027t check this.\nThis fixes a crash (null dereference) when using tproxy from e.g. output."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nft_tproxy: restricci\u00f3n al gancho de preenrutamiento. TPROXY solo se permite desde el preenrutamiento, pero nft_tproxy no lo comprueba. Esto corrige un fallo (desreferencia nula) al usar tproxy desde la salida, por ejemplo."
    }
  ],
  "id": "CVE-2022-50001",
  "lastModified": "2026-06-17T05:22:31.770",
  "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"
      }
    ]
  },
  "published": "2025-06-18T11:15:27.950",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/0b21edf4cc13516716848e0a4fdf726aa2a62cd9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/18bbc3213383a82b05383827f4b1b882e3f0a5a5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/343fed6b0daeb528ae5c9d4d84d9ff763ac95619"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/83ef55c4281f1b4c6bd4457c2e96ccd1c9e80200"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/9a1d92cbeac3335fee99fa865b8c5b0f2e71a8f7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/eaba3f9b672c3a3f820da8ee9584b9520674eafa"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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