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nvd-json-data-feeds/CVE-2023/CVE-2023-524xx/CVE-2023-52434.json
cad-safe-bot 7508f34b15 Auto-Update: 2025-01-17T21:00:27.243000+00:00
2025-01-17 21:03:53 +00:00

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{
"id": "CVE-2023-52434",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-02-20T18:15:50.790",
"lastModified": "2025-01-17T20:15:27.203",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix potential OOBs in smb2_parse_contexts()\n\nValidate offsets and lengths before dereferencing create contexts in\nsmb2_parse_contexts().\n\nThis fixes following oops when accessing invalid create contexts from\nserver:\n\n BUG: unable to handle page fault for address: ffff8881178d8cc3\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 4a01067 P4D 4a01067 PUD 0\n Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 3 PID: 1736 Comm: mount.cifs Not tainted 6.7.0-rc4 #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS\n rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014\n RIP: 0010:smb2_parse_contexts+0xa0/0x3a0 [cifs]\n Code: f8 10 75 13 48 b8 93 ad 25 50 9c b4 11 e7 49 39 06 0f 84 d2 00\n 00 00 8b 45 00 85 c0 74 61 41 29 c5 48 01 c5 41 83 fd 0f 76 55 <0f> b7\n 7d 04 0f b7 45 06 4c 8d 74 3d 00 66 83 f8 04 75 bc ba 04 00\n RSP: 0018:ffffc900007939e0 EFLAGS: 00010216\n RAX: ffffc90000793c78 RBX: ffff8880180cc000 RCX: ffffc90000793c90\n RDX: ffffc90000793cc0 RSI: ffff8880178d8cc0 RDI: ffff8880180cc000\n RBP: ffff8881178d8cbf R08: ffffc90000793c22 R09: 0000000000000000\n R10: ffff8880180cc000 R11: 0000000000000024 R12: 0000000000000000\n R13: 0000000000000020 R14: 0000000000000000 R15: ffffc90000793c22\n FS: 00007f873753cbc0(0000) GS:ffff88806bc00000(0000)\n knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: ffff8881178d8cc3 CR3: 00000000181ca000 CR4: 0000000000750ef0\n PKRU: 55555554\n Call Trace:\n <TASK>\n ? __die+0x23/0x70\n ? page_fault_oops+0x181/0x480\n ? search_module_extables+0x19/0x60\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? exc_page_fault+0x1b6/0x1c0\n ? asm_exc_page_fault+0x26/0x30\n ? smb2_parse_contexts+0xa0/0x3a0 [cifs]\n SMB2_open+0x38d/0x5f0 [cifs]\n ? smb2_is_path_accessible+0x138/0x260 [cifs]\n smb2_is_path_accessible+0x138/0x260 [cifs]\n cifs_is_path_remote+0x8d/0x230 [cifs]\n cifs_mount+0x7e/0x350 [cifs]\n cifs_smb3_do_mount+0x128/0x780 [cifs]\n smb3_get_tree+0xd9/0x290 [cifs]\n vfs_get_tree+0x2c/0x100\n ? capable+0x37/0x70\n path_mount+0x2d7/0xb80\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? _raw_spin_unlock_irqrestore+0x44/0x60\n __x64_sys_mount+0x11a/0x150\n do_syscall_64+0x47/0xf0\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\n RIP: 0033:0x7f8737657b1e"
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: smb: cliente: corrige OOB potenciales en smb2_parse_contexts() Valida compensaciones y longitudes antes de desreferenciar crea contextos en smb2_parse_contexts(). Esto corrige los siguientes errores al acceder a contextos de creaci\u00f3n no v\u00e1lidos desde el servidor: ERROR: no se puede manejar el error de p\u00e1gina para la direcci\u00f3n: ffff8881178d8cc3 #PF: acceso de lectura del supervisor en modo kernel #PF: error_code(0x0000) - p\u00e1gina no presente PGD 4a01067 P4D 4a01067 PUD 0 Ups: 0000 [#1] PREEMPT SMP NOPTI CPU: 3 PID: 1736 Comm: mount.cifs No est\u00e1 contaminado 6.7.0-rc4 #1 Nombre de hardware: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.2 -3-gd478f380-rebuilt.opensuse.org 04/04/2014 RIP: 0010: SMB2_PARSE_CONTEXTS+0XA0/0X3A0 [CIFS] C\u00f3digo: F8 10 75 13 48 B8 93 AD 25 50 9C B4 11 E7 49 39 06 0f 84 D2 00 00 00 8b 45 00 85 c0 74 61 41 29 c5 48 01 c5 41 83 fd 0f 76 55 &lt;0f&gt; b7 7d 04 0f b7 45 06 4c 8d 74 3d 00 66 83 f8 04 75 bc ba 04 00 RSP: 0018:ffffc900007939e0 EFLAGS: 00010216 RAX: ffffc90000793c78 RBX: ffff8880180cc000 RCX: ffffc90000793c90 RDX: ffffc90000793cc0 RSI: ffff8880178d8cc0 RDI: ffff8880180cc000 RBP: ffff8881178d8cbf R08: ffffc90000793c22 R09: 0000000000000000 R10: ffff8880180cc000 R11: 00000000000000024 R12: 0000000000000000 R13: 0000000 000000020 R14: 00000000000000000 R15: ffffc90000793c22 FS: 00007f873753cbc0(0000) GS:ffff88806bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff8881178d8cc3 CR3 : 00000000181ca000 CR4: 0000000000750ef0 PKRU: 55555554 Seguimiento de llamadas: ? __morir+0x23/0x70 ? page_fault_oops+0x181/0x480? search_module_extables+0x19/0x60? srso_alias_return_thunk+0x5/0xfbef5? exc_page_fault+0x1b6/0x1c0? asm_exc_page_fault+0x26/0x30? smb2_parse_contexts+0xa0/0x3a0 [cifs] SMB2_open+0x38d/0x5f0 [cifs] ? smb2_is_path_accessible+0x138/0x260 [cifs] smb2_is_path_accessible+0x138/0x260 [cifs] cifs_is_path_remote+0x8d/0x230 [cifs] cifs_mount+0x7e/0x350 [cifs] cifs_smb3_do_mount+0x128/0x7 80 [cifs] smb3_get_tree+0xd9/0x290 [cifs] vfs_get_tree+ 0x2c/0x100? capaz+0x37/0x70 path_mount+0x2d7/0xb80? srso_alias_return_thunk+0x5/0xfbef5? _raw_spin_unlock_irqrestore+0x44/0x60 __x64_sys_mount+0x11a/0x150 do_syscall_64+0x47/0xf0 Entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f8737657b1e"
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 8.0,
"baseSeverity": "HIGH",
"attackVector": "ADJACENT_NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 2.1,
"impactScore": 5.9
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-119"
}
]
}
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