GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2023-52518 (GCVE-0-2023-52518)

Vulnerability from cvelistv5 – Published: 2024-03-02 21:54 – Updated: 2026-05-11 19:28
VLAI
Title
Bluetooth: hci_codec: Fix leaking content of local_codecs
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_codec: Fix leaking content of local_codecs The following memory leak can be observed when the controller supports codecs which are stored in local_codecs list but the elements are never freed: unreferenced object 0xffff88800221d840 (size 32): comm "kworker/u3:0", pid 36, jiffies 4294898739 (age 127.060s) hex dump (first 32 bytes): f8 d3 02 03 80 88 ff ff 80 d8 21 02 80 88 ff ff ..........!..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffffb324f557>] __kmalloc+0x47/0x120 [<ffffffffb39ef37d>] hci_codec_list_add.isra.0+0x2d/0x160 [<ffffffffb39ef643>] hci_read_codec_capabilities+0x183/0x270 [<ffffffffb39ef9ab>] hci_read_supported_codecs+0x1bb/0x2d0 [<ffffffffb39f162e>] hci_read_local_codecs_sync+0x3e/0x60 [<ffffffffb39ff1b3>] hci_dev_open_sync+0x943/0x11e0 [<ffffffffb396d55d>] hci_power_on+0x10d/0x3f0 [<ffffffffb30c99b4>] process_one_work+0x404/0x800 [<ffffffffb30ca134>] worker_thread+0x374/0x670 [<ffffffffb30d9108>] kthread+0x188/0x1c0 [<ffffffffb304db6b>] ret_from_fork+0x2b/0x50 [<ffffffffb300206a>] ret_from_fork_asm+0x1a/0x30
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-24 14:55 UTC
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 8961987f3f5fa2f2618e72304d013c8dd5e604a6 , < 626535077ba9dc110787540d1fe24881094c15a1 (git)
Affected: 8961987f3f5fa2f2618e72304d013c8dd5e604a6 , < eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1 (git)
Affected: 8961987f3f5fa2f2618e72304d013c8dd5e604a6 , < b938790e70540bf4f2e653dcd74b232494d06c8f (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 6.1.57 , ≤ 6.1.* (semver)
Unaffected: 6.5.7 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-52518",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-24T14:55:30.640088Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-770",
                "description": "CWE-770 Allocation of Resources Without Limits or Throttling",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-01T15:47:47.632Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T23:03:20.700Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/626535077ba9dc110787540d1fe24881094c15a1"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/b938790e70540bf4f2e653dcd74b232494d06c8f"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_core.c",
            "net/bluetooth/hci_event.c",
            "net/bluetooth/hci_sync.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "626535077ba9dc110787540d1fe24881094c15a1",
              "status": "affected",
              "version": "8961987f3f5fa2f2618e72304d013c8dd5e604a6",
              "versionType": "git"
            },
            {
              "lessThan": "eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1",
              "status": "affected",
              "version": "8961987f3f5fa2f2618e72304d013c8dd5e604a6",
              "versionType": "git"
            },
            {
              "lessThan": "b938790e70540bf4f2e653dcd74b232494d06c8f",
              "status": "affected",
              "version": "8961987f3f5fa2f2618e72304d013c8dd5e604a6",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_core.c",
            "net/bluetooth/hci_event.c",
            "net/bluetooth/hci_sync.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.16"
            },
            {
              "lessThan": "5.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.57",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.57",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5.7",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6",
                  "versionStartIncluding": "5.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_codec: Fix leaking content of local_codecs\n\nThe following memory leak can be observed when the controller supports\ncodecs which are stored in local_codecs list but the elements are never\nfreed:\n\nunreferenced object 0xffff88800221d840 (size 32):\n  comm \"kworker/u3:0\", pid 36, jiffies 4294898739 (age 127.060s)\n  hex dump (first 32 bytes):\n    f8 d3 02 03 80 88 ff ff 80 d8 21 02 80 88 ff ff  ..........!.....\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [\u003cffffffffb324f557\u003e] __kmalloc+0x47/0x120\n    [\u003cffffffffb39ef37d\u003e] hci_codec_list_add.isra.0+0x2d/0x160\n    [\u003cffffffffb39ef643\u003e] hci_read_codec_capabilities+0x183/0x270\n    [\u003cffffffffb39ef9ab\u003e] hci_read_supported_codecs+0x1bb/0x2d0\n    [\u003cffffffffb39f162e\u003e] hci_read_local_codecs_sync+0x3e/0x60\n    [\u003cffffffffb39ff1b3\u003e] hci_dev_open_sync+0x943/0x11e0\n    [\u003cffffffffb396d55d\u003e] hci_power_on+0x10d/0x3f0\n    [\u003cffffffffb30c99b4\u003e] process_one_work+0x404/0x800\n    [\u003cffffffffb30ca134\u003e] worker_thread+0x374/0x670\n    [\u003cffffffffb30d9108\u003e] kthread+0x188/0x1c0\n    [\u003cffffffffb304db6b\u003e] ret_from_fork+0x2b/0x50\n    [\u003cffffffffb300206a\u003e] ret_from_fork_asm+0x1a/0x30"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:28:51.101Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/626535077ba9dc110787540d1fe24881094c15a1"
        },
        {
          "url": "https://git.kernel.org/stable/c/eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1"
        },
        {
          "url": "https://git.kernel.org/stable/c/b938790e70540bf4f2e653dcd74b232494d06c8f"
        }
      ],
      "title": "Bluetooth: hci_codec: Fix leaking content of local_codecs",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52518",
    "datePublished": "2024-03-02T21:54:47.826Z",
    "dateReserved": "2024-02-20T12:30:33.317Z",
    "dateUpdated": "2026-05-11T19:28:51.101Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-52518",
      "date": "2026-09-16",
      "epss": "0.00238",
      "percentile": "0.15063"
    },
    "fkie_nvd": {
      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: hci_codec: Fix leaking content of local_codecs\\n\\nThe following memory leak can be observed when the controller supports\\ncodecs which are stored in local_codecs list but the elements are never\\nfreed:\\n\\nunreferenced object 0xffff88800221d840 (size 32):\\n  comm \\\"kworker/u3:0\\\", pid 36, jiffies 4294898739 (age 127.060s)\\n  hex dump (first 32 bytes):\\n    f8 d3 02 03 80 88 ff ff 80 d8 21 02 80 88 ff ff  ..........!.....\\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\\n  backtrace:\\n    [\u003cffffffffb324f557\u003e] __kmalloc+0x47/0x120\\n    [\u003cffffffffb39ef37d\u003e] hci_codec_list_add.isra.0+0x2d/0x160\\n    [\u003cffffffffb39ef643\u003e] hci_read_codec_capabilities+0x183/0x270\\n    [\u003cffffffffb39ef9ab\u003e] hci_read_supported_codecs+0x1bb/0x2d0\\n    [\u003cffffffffb39f162e\u003e] hci_read_local_codecs_sync+0x3e/0x60\\n    [\u003cffffffffb39ff1b3\u003e] hci_dev_open_sync+0x943/0x11e0\\n    [\u003cffffffffb396d55d\u003e] hci_power_on+0x10d/0x3f0\\n    [\u003cffffffffb30c99b4\u003e] process_one_work+0x404/0x800\\n    [\u003cffffffffb30ca134\u003e] worker_thread+0x374/0x670\\n    [\u003cffffffffb30d9108\u003e] kthread+0x188/0x1c0\\n    [\u003cffffffffb304db6b\u003e] ret_from_fork+0x2b/0x50\\n    [\u003cffffffffb300206a\u003e] ret_from_fork_asm+0x1a/0x30\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se resolvi\\u00f3 la siguiente vulnerabilidad: Bluetooth: hci_codec: corrige el contenido filtrado de local_codecs La siguiente p\\u00e9rdida de memoria se puede observar cuando el controlador admite c\\u00f3decs que se almacenan en la lista local_codecs pero los elementos nunca se liberan: objeto sin referencia 0xffff88800221d840 ( tama\\u00f1o 32): comunicaci\\u00f3n \\\"kworker/u3:0\\\", pid 36, santiam\\u00e9n 4294898739 (edad 127.060 s) volcado hexadecimal (primeros 32 bytes): f8 d3 02 03 80 88 ff ff 80 d8 21 02 80 88 ff ff ... .......!..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ retroceso: [] __kmalloc+0x47/0x120 [] hci_codec_list_add.isra.0+0x2d/0x160 [] hci_read_codec_capabilities+0x183/0x270 [] hci_read_supported_codecs+0x 1bb/0x2d0 [] hci_read_local_codecs_sync+0x3e/ 0x60 [] hci_dev_open_sync+0x943/0x11e0 [] hci_power_on+0x10d/0x3f0 [] Process_one_work+0x404/0x800 [] hilo_trabajador+0x374/0x670 [] kthread+0x188/ 0x1c0 [] ret_from_fork+0x2b/0x50 [] ret_from_fork_asm+0x1a/0x30\"}]",
      "id": "CVE-2023-52518",
      "lastModified": "2024-11-21T08:39:57.030",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"type\": \"Secondary\", \"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}]}",
      "published": "2024-03-02T22:15:47.970",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/626535077ba9dc110787540d1fe24881094c15a1\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/b938790e70540bf4f2e653dcd74b232494d06c8f\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/626535077ba9dc110787540d1fe24881094c15a1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/b938790e70540bf4f2e653dcd74b232494d06c8f\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis",
      "weaknesses": "[{\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-770\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52518\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-02T22:15:47.970\",\"lastModified\":\"2026-06-17T06:42:55.010\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: hci_codec: Fix leaking content of local_codecs\\n\\nThe following memory leak can be observed when the controller supports\\ncodecs which are stored in local_codecs list but the elements are never\\nfreed:\\n\\nunreferenced object 0xffff88800221d840 (size 32):\\n  comm \\\"kworker/u3:0\\\", pid 36, jiffies 4294898739 (age 127.060s)\\n  hex dump (first 32 bytes):\\n    f8 d3 02 03 80 88 ff ff 80 d8 21 02 80 88 ff ff  ..........!.....\\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\\n  backtrace:\\n    [\u003cffffffffb324f557\u003e] __kmalloc+0x47/0x120\\n    [\u003cffffffffb39ef37d\u003e] hci_codec_list_add.isra.0+0x2d/0x160\\n    [\u003cffffffffb39ef643\u003e] hci_read_codec_capabilities+0x183/0x270\\n    [\u003cffffffffb39ef9ab\u003e] hci_read_supported_codecs+0x1bb/0x2d0\\n    [\u003cffffffffb39f162e\u003e] hci_read_local_codecs_sync+0x3e/0x60\\n    [\u003cffffffffb39ff1b3\u003e] hci_dev_open_sync+0x943/0x11e0\\n    [\u003cffffffffb396d55d\u003e] hci_power_on+0x10d/0x3f0\\n    [\u003cffffffffb30c99b4\u003e] process_one_work+0x404/0x800\\n    [\u003cffffffffb30ca134\u003e] worker_thread+0x374/0x670\\n    [\u003cffffffffb30d9108\u003e] kthread+0x188/0x1c0\\n    [\u003cffffffffb304db6b\u003e] ret_from_fork+0x2b/0x50\\n    [\u003cffffffffb300206a\u003e] ret_from_fork_asm+0x1a/0x30\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: Bluetooth: hci_codec: corrige el contenido filtrado de local_codecs La siguiente p\u00e9rdida de memoria se puede observar cuando el controlador admite c\u00f3decs que se almacenan en la lista local_codecs pero los elementos nunca se liberan: objeto sin referencia 0xffff88800221d840 ( tama\u00f1o 32): comunicaci\u00f3n \\\"kworker/u3:0\\\", pid 36, santiam\u00e9n 4294898739 (edad 127.060 s) volcado hexadecimal (primeros 32 bytes): f8 d3 02 03 80 88 ff ff 80 d8 21 02 80 88 ff ff ... .......!..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ retroceso: [] __kmalloc+0x47/0x120 [] hci_codec_list_add.isra.0+0x2d/0x160 [] hci_read_codec_capabilities+0x183/0x270 [] hci_read_supported_codecs+0x 1bb/0x2d0 [] hci_read_local_codecs_sync+0x3e/ 0x60 [] hci_dev_open_sync+0x943/0x11e0 [] hci_power_on+0x10d/0x3f0 [] Process_one_work+0x404/0x800 [] hilo_trabajador+0x374/0x670 [] kthread+0x188/ 0x1c0 [] ret_from_fork+0x2b/0x50 [] ret_from_fork_asm+0x1a/0x30\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/bluetooth/hci_core.c\",\"net/bluetooth/hci_event.c\",\"net/bluetooth/hci_sync.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"8961987f3f5fa2f2618e72304d013c8dd5e604a6\",\"lessThan\":\"626535077ba9dc110787540d1fe24881094c15a1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8961987f3f5fa2f2618e72304d013c8dd5e604a6\",\"lessThan\":\"eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8961987f3f5fa2f2618e72304d013c8dd5e604a6\",\"lessThan\":\"b938790e70540bf4f2e653dcd74b232494d06c8f\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/bluetooth/hci_core.c\",\"net/bluetooth/hci_event.c\",\"net/bluetooth/hci_sync.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.16\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.16\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.57\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.5.7\",\"lessThanOrEqual\":\"6.5.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"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}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-07-24T14:55:30.640088Z\",\"id\":\"CVE-2023-52518\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-770\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.57\",\"matchCriteriaId\":\"8629E5D1-351D-4D4B-8D05-E10BD4A1CFD0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.5.7\",\"matchCriteriaId\":\"830A824C-F212-4FDC-ADEF-0EBEC6B2365B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"84267A4F-DBC2-444F-B41D-69E15E1BEC97\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"FB440208-241C-4246-9A83-C1715C0DAA6C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.6:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"0DC421F1-3D5A-4BEF-BF76-4E468985D20B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.6:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"00AB783B-BE05-40E8-9A55-6AA457D95031\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/626535077ba9dc110787540d1fe24881094c15a1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b938790e70540bf4f2e653dcd74b232494d06c8f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/626535077ba9dc110787540d1fe24881094c15a1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b938790e70540bf4f2e653dcd74b232494d06c8f\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T10:54:12+00:00",
      "cve": "CVE-2023-52518",
      "id": "CVE-2023-52518",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "450",
      "product_status:known_affected": "150",
      "product_status:known_not_affected": "75",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Bluetooth: hci_codec: Fix leaking content of local_codecs",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52518.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T02:12:24Z",
      "cve": "CVE-2023-52518",
      "id": "CVE-2023-52518",
      "initial_release_date": "2024-03-07T04:25:55Z",
      "product_status:known_affected": "305",
      "product_status:known_not_affected": "321",
      "product_status:recommended": "528",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-52518",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-52518.json",
      "version": "61"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/626535077ba9dc110787540d1fe24881094c15a1\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/b938790e70540bf4f2e653dcd74b232494d06c8f\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T23:03:20.700Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-52518\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-07-24T14:55:30.640088Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-770\", \"description\": \"CWE-770 Allocation of Resources Without Limits or Throttling\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-07-24T14:55:35.931Z\"}}], \"cna\": {\"title\": \"Bluetooth: hci_codec: Fix leaking content of local_codecs\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"8961987f3f5fa2f2618e72304d013c8dd5e604a6\", \"lessThan\": \"626535077ba9dc110787540d1fe24881094c15a1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8961987f3f5fa2f2618e72304d013c8dd5e604a6\", \"lessThan\": \"eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"8961987f3f5fa2f2618e72304d013c8dd5e604a6\", \"lessThan\": \"b938790e70540bf4f2e653dcd74b232494d06c8f\", \"versionType\": \"git\"}], \"programFiles\": [\"net/bluetooth/hci_core.c\", \"net/bluetooth/hci_event.c\", \"net/bluetooth/hci_sync.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.16\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.16\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.1.57\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.5.7\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.5.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/bluetooth/hci_core.c\", \"net/bluetooth/hci_event.c\", \"net/bluetooth/hci_sync.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/626535077ba9dc110787540d1fe24881094c15a1\"}, {\"url\": \"https://git.kernel.org/stable/c/eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1\"}, {\"url\": \"https://git.kernel.org/stable/c/b938790e70540bf4f2e653dcd74b232494d06c8f\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: hci_codec: Fix leaking content of local_codecs\\n\\nThe following memory leak can be observed when the controller supports\\ncodecs which are stored in local_codecs list but the elements are never\\nfreed:\\n\\nunreferenced object 0xffff88800221d840 (size 32):\\n  comm \\\"kworker/u3:0\\\", pid 36, jiffies 4294898739 (age 127.060s)\\n  hex dump (first 32 bytes):\\n    f8 d3 02 03 80 88 ff ff 80 d8 21 02 80 88 ff ff  ..........!.....\\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\\n  backtrace:\\n    [\u003cffffffffb324f557\u003e] __kmalloc+0x47/0x120\\n    [\u003cffffffffb39ef37d\u003e] hci_codec_list_add.isra.0+0x2d/0x160\\n    [\u003cffffffffb39ef643\u003e] hci_read_codec_capabilities+0x183/0x270\\n    [\u003cffffffffb39ef9ab\u003e] hci_read_supported_codecs+0x1bb/0x2d0\\n    [\u003cffffffffb39f162e\u003e] hci_read_local_codecs_sync+0x3e/0x60\\n    [\u003cffffffffb39ff1b3\u003e] hci_dev_open_sync+0x943/0x11e0\\n    [\u003cffffffffb396d55d\u003e] hci_power_on+0x10d/0x3f0\\n    [\u003cffffffffb30c99b4\u003e] process_one_work+0x404/0x800\\n    [\u003cffffffffb30ca134\u003e] worker_thread+0x374/0x670\\n    [\u003cffffffffb30d9108\u003e] kthread+0x188/0x1c0\\n    [\u003cffffffffb304db6b\u003e] ret_from_fork+0x2b/0x50\\n    [\u003cffffffffb300206a\u003e] ret_from_fork_asm+0x1a/0x30\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.57\", \"versionStartIncluding\": \"5.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.5.7\", \"versionStartIncluding\": \"5.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6\", \"versionStartIncluding\": \"5.16\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:38:26.511Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52518\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:38:26.511Z\", \"dateReserved\": \"2024-02-20T12:30:33.317Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-02T21:54:47.826Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.