nvd-json-data-feeds/CVE-2024/CVE-2024-546xx/CVE-2024-54683.json

{
  "id": "CVE-2024-54683",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-01-11T13:15:27.490",
  "lastModified": "2025-01-16T15:18:09.453",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: IDLETIMER: Fix for possible ABBA deadlock\n\nDeletion of the last rule referencing a given idletimer may happen at\nthe same time as a read of its file in sysfs:\n\n| ======================================================\n| WARNING: possible circular locking dependency detected\n| 6.12.0-rc7-01692-g5e9a28f41134-dirty #594 Not tainted\n| ------------------------------------------------------\n| iptables/3303 is trying to acquire lock:\n| ffff8881057e04b8 (kn->active#48){++++}-{0:0}, at: __kernfs_remove+0x20\n|\n| but task is already holding lock:\n| ffffffffa0249068 (list_mutex){+.+.}-{3:3}, at: idletimer_tg_destroy_v]\n|\n| which lock already depends on the new lock.\n\nA simple reproducer is:\n\n| #!/bin/bash\n|\n| while true; do\n|         iptables -A INPUT -i foo -j IDLETIMER --timeout 10 --label \"testme\"\n|         iptables -D INPUT -i foo -j IDLETIMER --timeout 10 --label \"testme\"\n| done &\n| while true; do\n|         cat /sys/class/xt_idletimer/timers/testme >/dev/null\n| done\n\nAvoid this by freeing list_mutex right after deleting the element from\nthe list, then continuing with the teardown."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: IDLETIMER: Correcci\u00f3n de un posible bloqueo de ABBA La eliminaci\u00f3n de la \u00faltima regla que hace referencia a un temporizador inactivo determinado puede ocurrir al mismo tiempo que una lectura de su archivo en sysfs: | ======================================================== | ADVERTENCIA: se detect\u00f3 una posible dependencia de bloqueo circular | 6.12.0-rc7-01692-g5e9a28f41134-dirty #594 No contaminado | ------------------------------------------------------ | iptables/3303 est\u00e1 intentando adquirir el bloqueo: | ffff8881057e04b8 (kn->active#48){++++}-{0:0}, at: __kernfs_remove+0x20 | | pero la tarea ya tiene el bloqueo: | ffffffffa0249068 (list_mutex){+.+.}-{3:3}, at: idletimer_tg_destroy_v] | | cuyo bloqueo ya depende del nuevo bloqueo. Un reproductor simple es: | #!/bin/bash | | mientras es verdadero; hacer | iptables -A INPUT -i foo -j IDLETIMER --timeout 10 --label \"testme\" | iptables -D INPUT -i foo -j IDLETIMER --timeout 10 --label \"testme\" | hecho & | mientras es verdadero; hacer | cat /sys/class/xt_idletimer/timers/testme >/dev/null | Evite esto liberando list_mutex inmediatamente despu\u00e9s de eliminar el elemento de la lista y luego contin\u00fae con el desmontaje."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-667"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "2.6.36",
              "versionEndExcluding": "6.6.67",
              "matchCriteriaId": "04498663-FC2C-477E-9F63-68E556076CB8"
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  "references": [
    {
      "url": "https://git.kernel.org/stable/c/45fe76573a2557f632e248cc141342233f422b9a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "url": "https://git.kernel.org/stable/c/8c2c8445cda8f59c38dec7dc10509bcb23ae26a0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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}