cve-2023-52518
Vulnerability from cvelistv5
Published
2024-03-02 21:54
Modified
2024-12-19 08:21
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: 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
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/626535077ba9dc110787540d1fe24881094c15a1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b938790e70540bf4f2e653dcd74b232494d06c8f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/626535077ba9dc110787540d1fe24881094c15a1
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b938790e70540bf4f2e653dcd74b232494d06c8f
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1
Impacted products
Vendor Product Version
Linux Linux Version: 5.16
Show details on NVD website

To clipboard 

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    "dateReserved": "2024-02-20T12:30:33.317Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52518\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-02T22:15:47.970\",\"lastModified\":\"2024-11-21T08:39:57.030\",\"vulnStatus\":\"Awaiting Analysis\",\"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\"}],\"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}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-770\"}]}],\"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\"}]}}"
  }
}


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