FKIE_CVE-2022-48643

Vulnerability from fkie_nvd - Published: 2024-04-28 13:15 - Updated: 2026-06-17 05:15
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: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain() syzbot is reporting underflow of nft_counters_enabled counter at nf_tables_addchain() [1], for commit 43eb8949cfdffa76 ("netfilter: nf_tables: do not leave chain stats enabled on error") missed that nf_tables_chain_destroy() after nft_basechain_init() in the error path of nf_tables_addchain() decrements the counter because nft_basechain_init() makes nft_is_base_chain() return true by setting NFT_CHAIN_BASE flag. Increment the counter immediately after returning from nft_basechain_init().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/710e3f526bd23a0d33435dedc52c3144de284378Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8bcad2a931313aeba076b76922d5813ef97d0a91Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/91aa52652f4b37089aff3cb53e83049d826fef6dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/921ebde3c0d22c8cba74ce8eb3cc4626abff1ccdPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/710e3f526bd23a0d33435dedc52c3144de284378Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8bcad2a931313aeba076b76922d5813ef97d0a91Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/91aa52652f4b37089aff3cb53e83049d826fef6dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/921ebde3c0d22c8cba74ce8eb3cc4626abff1ccdPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.0
linux linux_kernel 6.0
linux linux_kernel 6.0
linux linux_kernel 6.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/nf_tables_api.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "710e3f526bd23a0d33435dedc52c3144de284378",
              "status": "affected",
              "version": "c907dfe4eaca9665694a0340de1458a093abe354",
              "versionType": "git"
            },
            {
              "lessThan": "91aa52652f4b37089aff3cb53e83049d826fef6d",
              "status": "affected",
              "version": "6d7ddee503951641f3ec6f0e3269446970bbcdab",
              "versionType": "git"
            },
            {
              "lessThan": "8bcad2a931313aeba076b76922d5813ef97d0a91",
              "status": "affected",
              "version": "98a621ef45e3605c7487f7fa6fec7df94697d6a2",
              "versionType": "git"
            },
            {
              "lessThan": "921ebde3c0d22c8cba74ce8eb3cc4626abff1ccd",
              "status": "affected",
              "version": "43eb8949cfdffa764b92bc6c54b87cbe5b0003fe",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/nf_tables_api.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5.10.146",
              "status": "affected",
              "version": "5.10.140",
              "versionType": "semver"
            },
            {
              "lessThan": "5.15.71",
              "status": "affected",
              "version": "5.15.64",
              "versionType": "semver"
            },
            {
              "lessThan": "5.19.12",
              "status": "affected",
              "version": "5.19.6",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "46F3A060-702E-4018-94C5-4E7FC03AB0F5",
              "versionEndExcluding": "5.10.146",
              "versionStartIncluding": "5.10.140",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E9A066D2-5BB3-49A3-9666-5736C6889680",
              "versionEndExcluding": "5.15.71",
              "versionStartIncluding": "5.15.64",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F7C38106-1200-4F0A-A144-7F7E34C1383D",
              "versionEndExcluding": "5.19.12",
              "versionStartIncluding": "5.19.6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "A46498B3-78E1-4623-AAE1-94D29A42BE4E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "F8446E87-F5F6-41CA-8201-BAE0F0CA6DD9",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc5:*:*:*:*:*:*",
              "matchCriteriaId": "8E5FB72F-67CE-43CC-83FE-541604D98182",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc6:*:*:*:*:*:*",
              "matchCriteriaId": "3A0A7397-F5F8-4753-82DC-9A11288E696D",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain()\n\nsyzbot is reporting underflow of nft_counters_enabled counter at\nnf_tables_addchain() [1], for commit 43eb8949cfdffa76 (\"netfilter:\nnf_tables: do not leave chain stats enabled on error\") missed that\nnf_tables_chain_destroy() after nft_basechain_init() in the error path of\nnf_tables_addchain() decrements the counter because nft_basechain_init()\nmakes nft_is_base_chain() return true by setting NFT_CHAIN_BASE flag.\n\nIncrement the counter immediately after returning from\nnft_basechain_init()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nf_tables: corrige el desbordamiento de nft_counters_enabled en nf_tables_addchain() syzbot informa el desbordamiento del contador nft_counters_enabled en nf_tables_addchain() [1], para el commit 43eb8949cfdffa76 (\"netfilter: nf_tables: no salir estad\u00edsticas de cadena habilitadas en caso de error\") pas\u00f3 por alto que nf_tables_chain_destroy() despu\u00e9s de nft_basechain_init() en la ruta de error de nf_tables_addchain() disminuye el contador porque nft_basechain_init() hace que nft_is_base_chain() devuelva verdadero al configurar el indicador NFT_CHAIN_BASE. Incrementa el contador inmediatamente despu\u00e9s de regresar de nft_basechain_init()."
    }
  ],
  "id": "CVE-2022-48643",
  "lastModified": "2026-06-17T05:15:48.230",
  "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-2022-48643",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-06-17T19:08:06.507072Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-04-28T13:15:07.040",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/710e3f526bd23a0d33435dedc52c3144de284378"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8bcad2a931313aeba076b76922d5813ef97d0a91"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/91aa52652f4b37089aff3cb53e83049d826fef6d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/921ebde3c0d22c8cba74ce8eb3cc4626abff1ccd"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/710e3f526bd23a0d33435dedc52c3144de284378"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8bcad2a931313aeba076b76922d5813ef97d0a91"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/91aa52652f4b37089aff3cb53e83049d826fef6d"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/921ebde3c0d22c8cba74ce8eb3cc4626abff1ccd"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-191"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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