FKIE_CVE-2023-53582

Vulnerability from fkie_nvd - Published: 2025-10-04 16:15 - Updated: 2026-02-10 14:43
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: wifi: brcmfmac: ensure CLM version is null-terminated to prevent stack-out-of-bounds Fix a stack-out-of-bounds read in brcmfmac that occurs when 'buf' that is not null-terminated is passed as an argument of strreplace() in brcmf_c_preinit_dcmds(). This buffer is filled with a CLM version string by memcpy() in brcmf_fil_iovar_data_get(). Ensure buf is null-terminated. Found by a modified version of syzkaller. [ 33.004414][ T1896] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available [ 33.013486][ T1896] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43236/3 wl0: Nov 30 2011 17:33:42 version 5.90.188.22 [ 33.021554][ T1896] ================================================================== [ 33.022379][ T1896] BUG: KASAN: stack-out-of-bounds in strreplace+0xf2/0x110 [ 33.023122][ T1896] Read of size 1 at addr ffffc90001d6efc8 by task kworker/0:2/1896 [ 33.023852][ T1896] [ 33.024096][ T1896] CPU: 0 PID: 1896 Comm: kworker/0:2 Tainted: G O 5.14.0+ #132 [ 33.024927][ T1896] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014 [ 33.026065][ T1896] Workqueue: usb_hub_wq hub_event [ 33.026581][ T1896] Call Trace: [ 33.026896][ T1896] dump_stack_lvl+0x57/0x7d [ 33.027372][ T1896] print_address_description.constprop.0.cold+0xf/0x334 [ 33.028037][ T1896] ? strreplace+0xf2/0x110 [ 33.028403][ T1896] ? strreplace+0xf2/0x110 [ 33.028807][ T1896] kasan_report.cold+0x83/0xdf [ 33.029283][ T1896] ? strreplace+0xf2/0x110 [ 33.029666][ T1896] strreplace+0xf2/0x110 [ 33.029966][ T1896] brcmf_c_preinit_dcmds+0xab1/0xc40 [ 33.030351][ T1896] ? brcmf_c_set_joinpref_default+0x100/0x100 [ 33.030787][ T1896] ? rcu_read_lock_sched_held+0xa1/0xd0 [ 33.031223][ T1896] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 33.031661][ T1896] ? lock_acquire+0x19d/0x4e0 [ 33.032091][ T1896] ? find_held_lock+0x2d/0x110 [ 33.032605][ T1896] ? brcmf_usb_deq+0x1a7/0x260 [ 33.033087][ T1896] ? brcmf_usb_rx_fill_all+0x5a/0xf0 [ 33.033582][ T1896] brcmf_attach+0x246/0xd40 [ 33.034022][ T1896] ? wiphy_new_nm+0x1476/0x1d50 [ 33.034383][ T1896] ? kmemdup+0x30/0x40 [ 33.034722][ T1896] brcmf_usb_probe+0x12de/0x1690 [ 33.035223][ T1896] ? brcmf_usbdev_qinit.constprop.0+0x470/0x470 [ 33.035833][ T1896] usb_probe_interface+0x25f/0x710 [ 33.036315][ T1896] really_probe+0x1be/0xa90 [ 33.036656][ T1896] __driver_probe_device+0x2ab/0x460 [ 33.037026][ T1896] ? usb_match_id.part.0+0x88/0xc0 [ 33.037383][ T1896] driver_probe_device+0x49/0x120 [ 33.037790][ T1896] __device_attach_driver+0x18a/0x250 [ 33.038300][ T1896] ? driver_allows_async_probing+0x120/0x120 [ 33.038986][ T1896] bus_for_each_drv+0x123/0x1a0 [ 33.039906][ T1896] ? bus_rescan_devices+0x20/0x20 [ 33.041412][ T1896] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 33.041861][ T1896] ? trace_hardirqs_on+0x1c/0x120 [ 33.042330][ T1896] __device_attach+0x207/0x330 [ 33.042664][ T1896] ? device_bind_driver+0xb0/0xb0 [ 33.043026][ T1896] ? kobject_uevent_env+0x230/0x12c0 [ 33.043515][ T1896] bus_probe_device+0x1a2/0x260 [ 33.043914][ T1896] device_add+0xa61/0x1ce0 [ 33.044227][ T1896] ? __mutex_unlock_slowpath+0xe7/0x660 [ 33.044891][ T1896] ? __fw_devlink_link_to_suppliers+0x550/0x550 [ 33.045531][ T1896] usb_set_configuration+0x984/0x1770 [ 33.046051][ T1896] ? kernfs_create_link+0x175/0x230 [ 33.046548][ T1896] usb_generic_driver_probe+0x69/0x90 [ 33.046931][ T1896] usb_probe_device+0x9c/0x220 [ 33.047434][ T1896] really_probe+0x1be/0xa90 [ 33.047760][ T1896] __driver_probe_device+0x2ab/0x460 [ 33.048134][ T1896] driver_probe_device+0x49/0x120 [ 33.048516][ T1896] __device_attach_driver+0x18a/0x250 [ 33.048910][ T1896] ? driver_allows_async_probing+0x120/0x120 ---truncated---
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0ca2efea4f11c6255061e852ac188264c469c197Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3b173b4ad9c001a555f44adc7836d6fe3afbe9ecPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/423a1297ea72bbddf64dbb0957f2879c0f2aa5d0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/660145d708be52f946a82e5b633c020f58f996dePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a0f0ce1c8ab9fe90618dc394e3d1568b5a9ac154Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c02f733024d70105f22de8dd0a1252a0350cd516Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ecb980dc79709c02f579a9c03cb92ccec189ab38Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C902FC54-DDBD-4DA6-BFEF-26889A267464",
              "versionEndExcluding": "4.19.276",
              "versionStartIncluding": "4.15",
              "vulnerable": true
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              "matchCriteriaId": "13DD5E68-8CB4-46EE-9A8F-C7F6C1A84430",
              "versionEndExcluding": "5.4.235",
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            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4D810CFB-B7C5-493C-B98A-0D5F0D8A47B6",
              "versionEndExcluding": "5.10.173",
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            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "vulnerable": true
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            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0FD95FDA-6525-4B13-B3FB-49D9995FD8ED",
              "versionEndExcluding": "6.1.16",
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            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "6.2.3",
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          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: ensure CLM version is null-terminated to prevent stack-out-of-bounds\n\nFix a stack-out-of-bounds read in brcmfmac that occurs\nwhen \u0027buf\u0027 that is not null-terminated is passed as an argument of\nstrreplace() in brcmf_c_preinit_dcmds(). This buffer is filled with\na CLM version string by memcpy() in brcmf_fil_iovar_data_get().\nEnsure buf is null-terminated.\n\nFound by a modified version of syzkaller.\n\n[   33.004414][ T1896] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available\n[   33.013486][ T1896] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43236/3 wl0: Nov 30 2011 17:33:42 version 5.90.188.22\n[   33.021554][ T1896] ==================================================================\n[   33.022379][ T1896] BUG: KASAN: stack-out-of-bounds in strreplace+0xf2/0x110\n[   33.023122][ T1896] Read of size 1 at addr ffffc90001d6efc8 by task kworker/0:2/1896\n[   33.023852][ T1896]\n[   33.024096][ T1896] CPU: 0 PID: 1896 Comm: kworker/0:2 Tainted: G           O      5.14.0+ #132\n[   33.024927][ T1896] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014\n[   33.026065][ T1896] Workqueue: usb_hub_wq hub_event\n[   33.026581][ T1896] Call Trace:\n[   33.026896][ T1896]  dump_stack_lvl+0x57/0x7d\n[   33.027372][ T1896]  print_address_description.constprop.0.cold+0xf/0x334\n[   33.028037][ T1896]  ? strreplace+0xf2/0x110\n[   33.028403][ T1896]  ? strreplace+0xf2/0x110\n[   33.028807][ T1896]  kasan_report.cold+0x83/0xdf\n[   33.029283][ T1896]  ? strreplace+0xf2/0x110\n[   33.029666][ T1896]  strreplace+0xf2/0x110\n[   33.029966][ T1896]  brcmf_c_preinit_dcmds+0xab1/0xc40\n[   33.030351][ T1896]  ? brcmf_c_set_joinpref_default+0x100/0x100\n[   33.030787][ T1896]  ? rcu_read_lock_sched_held+0xa1/0xd0\n[   33.031223][ T1896]  ? rcu_read_lock_bh_held+0xb0/0xb0\n[   33.031661][ T1896]  ? lock_acquire+0x19d/0x4e0\n[   33.032091][ T1896]  ? find_held_lock+0x2d/0x110\n[   33.032605][ T1896]  ? brcmf_usb_deq+0x1a7/0x260\n[   33.033087][ T1896]  ? brcmf_usb_rx_fill_all+0x5a/0xf0\n[   33.033582][ T1896]  brcmf_attach+0x246/0xd40\n[   33.034022][ T1896]  ? wiphy_new_nm+0x1476/0x1d50\n[   33.034383][ T1896]  ? kmemdup+0x30/0x40\n[   33.034722][ T1896]  brcmf_usb_probe+0x12de/0x1690\n[   33.035223][ T1896]  ? brcmf_usbdev_qinit.constprop.0+0x470/0x470\n[   33.035833][ T1896]  usb_probe_interface+0x25f/0x710\n[   33.036315][ T1896]  really_probe+0x1be/0xa90\n[   33.036656][ T1896]  __driver_probe_device+0x2ab/0x460\n[   33.037026][ T1896]  ? usb_match_id.part.0+0x88/0xc0\n[   33.037383][ T1896]  driver_probe_device+0x49/0x120\n[   33.037790][ T1896]  __device_attach_driver+0x18a/0x250\n[   33.038300][ T1896]  ? driver_allows_async_probing+0x120/0x120\n[   33.038986][ T1896]  bus_for_each_drv+0x123/0x1a0\n[   33.039906][ T1896]  ? bus_rescan_devices+0x20/0x20\n[   33.041412][ T1896]  ? lockdep_hardirqs_on_prepare+0x273/0x3e0\n[   33.041861][ T1896]  ? trace_hardirqs_on+0x1c/0x120\n[   33.042330][ T1896]  __device_attach+0x207/0x330\n[   33.042664][ T1896]  ? device_bind_driver+0xb0/0xb0\n[   33.043026][ T1896]  ? kobject_uevent_env+0x230/0x12c0\n[   33.043515][ T1896]  bus_probe_device+0x1a2/0x260\n[   33.043914][ T1896]  device_add+0xa61/0x1ce0\n[   33.044227][ T1896]  ? __mutex_unlock_slowpath+0xe7/0x660\n[   33.044891][ T1896]  ? __fw_devlink_link_to_suppliers+0x550/0x550\n[   33.045531][ T1896]  usb_set_configuration+0x984/0x1770\n[   33.046051][ T1896]  ? kernfs_create_link+0x175/0x230\n[   33.046548][ T1896]  usb_generic_driver_probe+0x69/0x90\n[   33.046931][ T1896]  usb_probe_device+0x9c/0x220\n[   33.047434][ T1896]  really_probe+0x1be/0xa90\n[   33.047760][ T1896]  __driver_probe_device+0x2ab/0x460\n[   33.048134][ T1896]  driver_probe_device+0x49/0x120\n[   33.048516][ T1896]  __device_attach_driver+0x18a/0x250\n[   33.048910][ T1896]  ? driver_allows_async_probing+0x120/0x120\n---truncated---"
    }
  ],
  "id": "CVE-2023-53582",
  "lastModified": "2026-02-10T14:43:43.063",
  "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": "2025-10-04T16:15:53.957",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/0ca2efea4f11c6255061e852ac188264c469c197"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3b173b4ad9c001a555f44adc7836d6fe3afbe9ec"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/423a1297ea72bbddf64dbb0957f2879c0f2aa5d0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
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      "url": "https://git.kernel.org/stable/c/660145d708be52f946a82e5b633c020f58f996de"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/a0f0ce1c8ab9fe90618dc394e3d1568b5a9ac154"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c02f733024d70105f22de8dd0a1252a0350cd516"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ecb980dc79709c02f579a9c03cb92ccec189ab38"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Sightings

Author Source Type Date

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.