CVE-2023-53582 (GCVE-0-2023-53582)

Vulnerability from cvelistv5 – Published: 2025-10-04 15:43 – Updated: 2026-05-11 19:47
VLAI
Title
wifi: brcmfmac: ensure CLM version is null-terminated to prevent stack-out-of-bounds
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---
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: fdd0bd88ceaecf729db103ac8836af5805dd2dc1 , < 3b173b4ad9c001a555f44adc7836d6fe3afbe9ec (git)
Affected: fdd0bd88ceaecf729db103ac8836af5805dd2dc1 , < 423a1297ea72bbddf64dbb0957f2879c0f2aa5d0 (git)
Affected: fdd0bd88ceaecf729db103ac8836af5805dd2dc1 , < 0ca2efea4f11c6255061e852ac188264c469c197 (git)
Affected: fdd0bd88ceaecf729db103ac8836af5805dd2dc1 , < a0f0ce1c8ab9fe90618dc394e3d1568b5a9ac154 (git)
Affected: fdd0bd88ceaecf729db103ac8836af5805dd2dc1 , < ecb980dc79709c02f579a9c03cb92ccec189ab38 (git)
Affected: fdd0bd88ceaecf729db103ac8836af5805dd2dc1 , < c02f733024d70105f22de8dd0a1252a0350cd516 (git)
Affected: fdd0bd88ceaecf729db103ac8836af5805dd2dc1 , < 660145d708be52f946a82e5b633c020f58f996de (git)
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Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 4.19.276 , ≤ 4.19.* (semver)
Unaffected: 5.4.235 , ≤ 5.4.* (semver)
Unaffected: 5.10.173 , ≤ 5.10.* (semver)
Unaffected: 5.15.99 , ≤ 5.15.* (semver)
Unaffected: 6.1.16 , ≤ 6.1.* (semver)
Unaffected: 6.2.3 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3b173b4ad9c001a555f44adc7836d6fe3afbe9ec",
              "status": "affected",
              "version": "fdd0bd88ceaecf729db103ac8836af5805dd2dc1",
              "versionType": "git"
            },
            {
              "lessThan": "423a1297ea72bbddf64dbb0957f2879c0f2aa5d0",
              "status": "affected",
              "version": "fdd0bd88ceaecf729db103ac8836af5805dd2dc1",
              "versionType": "git"
            },
            {
              "lessThan": "0ca2efea4f11c6255061e852ac188264c469c197",
              "status": "affected",
              "version": "fdd0bd88ceaecf729db103ac8836af5805dd2dc1",
              "versionType": "git"
            },
            {
              "lessThan": "a0f0ce1c8ab9fe90618dc394e3d1568b5a9ac154",
              "status": "affected",
              "version": "fdd0bd88ceaecf729db103ac8836af5805dd2dc1",
              "versionType": "git"
            },
            {
              "lessThan": "ecb980dc79709c02f579a9c03cb92ccec189ab38",
              "status": "affected",
              "version": "fdd0bd88ceaecf729db103ac8836af5805dd2dc1",
              "versionType": "git"
            },
            {
              "lessThan": "c02f733024d70105f22de8dd0a1252a0350cd516",
              "status": "affected",
              "version": "fdd0bd88ceaecf729db103ac8836af5805dd2dc1",
              "versionType": "git"
            },
            {
              "lessThan": "660145d708be52f946a82e5b633c020f58f996de",
              "status": "affected",
              "version": "fdd0bd88ceaecf729db103ac8836af5805dd2dc1",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.276",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.235",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.173",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.99",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.276",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.235",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.173",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.99",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.16",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2.3",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:47:51.395Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3b173b4ad9c001a555f44adc7836d6fe3afbe9ec"
        },
        {
          "url": "https://git.kernel.org/stable/c/423a1297ea72bbddf64dbb0957f2879c0f2aa5d0"
        },
        {
          "url": "https://git.kernel.org/stable/c/0ca2efea4f11c6255061e852ac188264c469c197"
        },
        {
          "url": "https://git.kernel.org/stable/c/a0f0ce1c8ab9fe90618dc394e3d1568b5a9ac154"
        },
        {
          "url": "https://git.kernel.org/stable/c/ecb980dc79709c02f579a9c03cb92ccec189ab38"
        },
        {
          "url": "https://git.kernel.org/stable/c/c02f733024d70105f22de8dd0a1252a0350cd516"
        },
        {
          "url": "https://git.kernel.org/stable/c/660145d708be52f946a82e5b633c020f58f996de"
        }
      ],
      "title": "wifi: brcmfmac: ensure CLM version is null-terminated to prevent stack-out-of-bounds",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53582",
    "datePublished": "2025-10-04T15:43:58.493Z",
    "dateReserved": "2025-10-04T15:14:15.926Z",
    "dateUpdated": "2026-05-11T19:47:51.395Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-53582",
      "date": "2026-10-30",
      "epss": "0.0016",
      "percentile": "0.05117"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "3b173b4ad9c001a555f44adc7836d6fe3afbe9ec",
                    "status": "affected",
                    "version": "fdd0bd88ceaecf729db103ac8836af5805dd2dc1",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "423a1297ea72bbddf64dbb0957f2879c0f2aa5d0",
                    "status": "affected",
                    "version": "fdd0bd88ceaecf729db103ac8836af5805dd2dc1",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "0ca2efea4f11c6255061e852ac188264c469c197",
                    "status": "affected",
                    "version": "fdd0bd88ceaecf729db103ac8836af5805dd2dc1",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "a0f0ce1c8ab9fe90618dc394e3d1568b5a9ac154",
                    "status": "affected",
                    "version": "fdd0bd88ceaecf729db103ac8836af5805dd2dc1",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "ecb980dc79709c02f579a9c03cb92ccec189ab38",
                    "status": "affected",
                    "version": "fdd0bd88ceaecf729db103ac8836af5805dd2dc1",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "c02f733024d70105f22de8dd0a1252a0350cd516",
                    "status": "affected",
                    "version": "fdd0bd88ceaecf729db103ac8836af5805dd2dc1",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "660145d708be52f946a82e5b633c020f58f996de",
                    "status": "affected",
                    "version": "fdd0bd88ceaecf729db103ac8836af5805dd2dc1",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "4.15"
                  },
                  {
                    "lessThan": "4.15",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "4.19.*",
                    "status": "unaffected",
                    "version": "4.19.276",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.4.*",
                    "status": "unaffected",
                    "version": "5.4.235",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.173",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.99",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.16",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.2.*",
                    "status": "unaffected",
                    "version": "6.2.3",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.3",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "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
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "13DD5E68-8CB4-46EE-9A8F-C7F6C1A84430",
                    "versionEndExcluding": "5.4.235",
                    "versionStartIncluding": "4.20",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "4D810CFB-B7C5-493C-B98A-0D5F0D8A47B6",
                    "versionEndExcluding": "5.10.173",
                    "versionStartIncluding": "5.5",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5B8B2AC9-2F31-4A0F-96F5-7E26B50B27BB",
                    "versionEndExcluding": "5.15.99",
                    "versionStartIncluding": "5.11",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0FD95FDA-6525-4B13-B3FB-49D9995FD8ED",
                    "versionEndExcluding": "6.1.16",
                    "versionStartIncluding": "5.16",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "88C67289-22AD-4CA9-B202-5F5A80E5BA4B",
                    "versionEndExcluding": "6.2.3",
                    "versionStartIncluding": "6.2",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "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": "2026-06-17T06:45:39.110",
        "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"
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            "url": "https://git.kernel.org/stable/c/3b173b4ad9c001a555f44adc7836d6fe3afbe9ec"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
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            "url": "https://git.kernel.org/stable/c/423a1297ea72bbddf64dbb0957f2879c0f2aa5d0"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/660145d708be52f946a82e5b633c020f58f996de"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "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"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-22T03:07:35+00:00",
      "cve": "CVE-2023-53582",
      "id": "CVE-2023-53582",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "120",
      "product_status:known_affected": "152",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: wifi: brcmfmac: ensure CLM version is null-terminated to prevent stack-out-of-bounds",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53582.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-10-16T02:32:19Z",
      "cve": "CVE-2023-53582",
      "id": "CVE-2023-53582",
      "initial_release_date": "2025-10-05T02:55:58Z",
      "product_status:known_affected": "516",
      "product_status:known_not_affected": "172",
      "product_status:recommended": "297",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53582",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2025/cve-2023-53582.json",
      "version": "31"
    }
  }
}



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