FKIE_CVE-2024-41042

Vulnerability from fkie_nvd - Published: 2024-07-29 15:15 - Updated: 2026-06-17 07:47
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: prefer nft_chain_validate nft_chain_validate already performs loop detection because a cycle will result in a call stack overflow (ctx->level >= NFT_JUMP_STACK_SIZE). It also follows maps via ->validate callback in nft_lookup, so there appears no reason to iterate the maps again. nf_tables_check_loops() and all its helper functions can be removed. This improves ruleset load time significantly, from 23s down to 12s. This also fixes a crash bug. Old loop detection code can result in unbounded recursion: BUG: TASK stack guard page was hit at .... Oops: stack guard page: 0000 [#1] PREEMPT SMP KASAN CPU: 4 PID: 1539 Comm: nft Not tainted 6.10.0-rc5+ #1 [..] with a suitable ruleset during validation of register stores. I can't see any actual reason to attempt to check for this from nft_validate_register_store(), at this point the transaction is still in progress, so we don't have a full picture of the rule graph. For nf-next it might make sense to either remove it or make this depend on table->validate_state in case we could catch an error earlier (for improved error reporting to userspace).
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1947e4c3346faa8ac7e343652c0fd3b3e394202fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/31c35f9f89ef585f1edb53e17ac73a0ca4a9712bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/717c91c6ed73e248de6a15bc53adefb81446c9d0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8246b7466c8da49d0d9e85e26cbd69dd6d3e3d1ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9df785aeb7dcc8efd1d4110bb27d26005298ebaePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b6b6e430470e1c3c5513311cb35a15a205595abePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cd4348e0a50286282c314ad6d2b0740e7c812c24Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cff3bd012a9512ac5ed858d38e6ed65f6391008cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9df785aeb7dcc8efd1d4110bb27d26005298ebaePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cff3bd012a9512ac5ed858d38e6ed65f6391008cPatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.10
linux linux_kernel 6.10
linux linux_kernel 6.10
linux linux_kernel 6.10
linux linux_kernel 6.10
linux linux_kernel 6.10
linux linux_kernel 6.10
To clipboard 

{
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: prefer nft_chain_validate\n\nnft_chain_validate already performs loop detection because a cycle will\nresult in a call stack overflow (ctx-\u003elevel \u003e= NFT_JUMP_STACK_SIZE).\n\nIt also follows maps via -\u003evalidate callback in nft_lookup, so there\nappears no reason to iterate the maps again.\n\nnf_tables_check_loops() and all its helper functions can be removed.\nThis improves ruleset load time significantly, from 23s down to 12s.\n\nThis also fixes a crash bug. Old loop detection code can result in\nunbounded recursion:\n\nBUG: TASK stack guard page was hit at ....\nOops: stack guard page: 0000 [#1] PREEMPT SMP KASAN\nCPU: 4 PID: 1539 Comm: nft Not tainted 6.10.0-rc5+ #1\n[..]\n\nwith a suitable ruleset during validation of register stores.\n\nI can\u0027t see any actual reason to attempt to check for this from\nnft_validate_register_store(), at this point the transaction is still in\nprogress, so we don\u0027t have a full picture of the rule graph.\n\nFor nf-next it might make sense to either remove it or make this depend\non table-\u003evalidate_state in case we could catch an error earlier\n(for improved error reporting to userspace)."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: netfilter: nf_tables: prefiere nft_chain_validate nft_chain_validate ya realiza detecci\u00f3n de bucle porque un ciclo resultar\u00e1 en un desbordamiento de la pila de llamadas (ctx-\u0026gt;level \u0026gt;= NFT_JUMP_STACK_SIZE). Tambi\u00e9n sigue los mapas a trav\u00e9s de -\u0026gt;validate callback en nft_lookup, por lo que no parece haber raz\u00f3n para iterar los mapas nuevamente. nf_tables_check_loops() y todas sus funciones auxiliares se pueden eliminar. Esto mejora significativamente el tiempo de carga del conjunto de reglas, de 23 a 12 segundos. Esto tambi\u00e9n corrige un error de bloqueo. El c\u00f3digo de detecci\u00f3n de bucle antiguo puede provocar una recursividad ilimitada: ERROR: La p\u00e1gina de protecci\u00f3n de pila de TAREA fue visitada en... Vaya: p\u00e1gina de protecci\u00f3n de pila: 0000 [#1] PREEMPT SMP KASAN CPU: 4 PID: 1539 Comm: nft No contaminado 6.10. 0-rc5+ #1 [..] con un conjunto de reglas adecuado durante la validaci\u00f3n de los almacenes de registros. No veo ninguna raz\u00f3n real para intentar verificar esto desde nft_validate_register_store(); en este punto, la transacci\u00f3n a\u00fan est\u00e1 en progreso, por lo que no tenemos una imagen completa del gr\u00e1fico de reglas. Para nf-next, podr\u00eda tener sentido eliminarlo o hacer que esto dependa de table-\u0026gt;validate_state en caso de que podamos detectar un error antes (para mejorar el informe de errores al espacio de usuario)."
    }
  ],
  "id": "CVE-2024-41042",
  "lastModified": "2026-06-17T07:47:09.107",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-41042",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-10T16:23:10.425038Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-07-29T15:15:12.647",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/1947e4c3346faa8ac7e343652c0fd3b3e394202f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/31c35f9f89ef585f1edb53e17ac73a0ca4a9712b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "url": "https://git.kernel.org/stable/c/717c91c6ed73e248de6a15bc53adefb81446c9d0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "url": "https://git.kernel.org/stable/c/8246b7466c8da49d0d9e85e26cbd69dd6d3e3d1e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/9df785aeb7dcc8efd1d4110bb27d26005298ebae"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b6b6e430470e1c3c5513311cb35a15a205595abe"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/cd4348e0a50286282c314ad6d2b0740e7c812c24"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/cff3bd012a9512ac5ed858d38e6ed65f6391008c"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/9df785aeb7dcc8efd1d4110bb27d26005298ebae"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/cff3bd012a9512ac5ed858d38e6ed65f6391008c"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Tags
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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.