mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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174 lines
10 KiB
JSON
174 lines
10 KiB
JSON
{
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"id": "CVE-2024-50151",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-11-07T10:15:06.780",
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"lastModified": "2024-11-22T17:30:55.633",
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"vulnStatus": "Analyzed",
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix OOBs when building SMB2_IOCTL request\n\nWhen using encryption, either enforced by the server or when using\n'seal' mount option, the client will squash all compound request buffers\ndown for encryption into a single iov in smb2_set_next_command().\n\nSMB2_ioctl_init() allocates a small buffer (448 bytes) to hold the\nSMB2_IOCTL request in the first iov, and if the user passes an input\nbuffer that is greater than 328 bytes, smb2_set_next_command() will\nend up writing off the end of @rqst->iov[0].iov_base as shown below:\n\n mount.cifs //srv/share /mnt -o ...,seal\n ln -s $(perl -e \"print('a')for 1..1024\") /mnt/link\n\n BUG: KASAN: slab-out-of-bounds in\n smb2_set_next_command.cold+0x1d6/0x24c [cifs]\n Write of size 4116 at addr ffff8881148fcab8 by task ln/859\n\n CPU: 1 UID: 0 PID: 859 Comm: ln Not tainted 6.12.0-rc3 #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS\n 1.16.3-2.fc40 04/01/2014\n Call Trace:\n <TASK>\n dump_stack_lvl+0x5d/0x80\n ? smb2_set_next_command.cold+0x1d6/0x24c [cifs]\n print_report+0x156/0x4d9\n ? smb2_set_next_command.cold+0x1d6/0x24c [cifs]\n ? __virt_addr_valid+0x145/0x310\n ? __phys_addr+0x46/0x90\n ? smb2_set_next_command.cold+0x1d6/0x24c [cifs]\n kasan_report+0xda/0x110\n ? smb2_set_next_command.cold+0x1d6/0x24c [cifs]\n kasan_check_range+0x10f/0x1f0\n __asan_memcpy+0x3c/0x60\n smb2_set_next_command.cold+0x1d6/0x24c [cifs]\n smb2_compound_op+0x238c/0x3840 [cifs]\n ? kasan_save_track+0x14/0x30\n ? kasan_save_free_info+0x3b/0x70\n ? vfs_symlink+0x1a1/0x2c0\n ? do_symlinkat+0x108/0x1c0\n ? __pfx_smb2_compound_op+0x10/0x10 [cifs]\n ? kmem_cache_free+0x118/0x3e0\n ? cifs_get_writable_path+0xeb/0x1a0 [cifs]\n smb2_get_reparse_inode+0x423/0x540 [cifs]\n ? __pfx_smb2_get_reparse_inode+0x10/0x10 [cifs]\n ? rcu_is_watching+0x20/0x50\n ? __kmalloc_noprof+0x37c/0x480\n ? smb2_create_reparse_symlink+0x257/0x490 [cifs]\n ? smb2_create_reparse_symlink+0x38f/0x490 [cifs]\n smb2_create_reparse_symlink+0x38f/0x490 [cifs]\n ? __pfx_smb2_create_reparse_symlink+0x10/0x10 [cifs]\n ? find_held_lock+0x8a/0xa0\n ? hlock_class+0x32/0xb0\n ? __build_path_from_dentry_optional_prefix+0x19d/0x2e0 [cifs]\n cifs_symlink+0x24f/0x960 [cifs]\n ? __pfx_make_vfsuid+0x10/0x10\n ? __pfx_cifs_symlink+0x10/0x10 [cifs]\n ? make_vfsgid+0x6b/0xc0\n ? generic_permission+0x96/0x2d0\n vfs_symlink+0x1a1/0x2c0\n do_symlinkat+0x108/0x1c0\n ? __pfx_do_symlinkat+0x10/0x10\n ? strncpy_from_user+0xaa/0x160\n __x64_sys_symlinkat+0xb9/0xf0\n do_syscall_64+0xbb/0x1d0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n RIP: 0033:0x7f08d75c13bb"
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},
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{
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"lang": "es",
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb: cliente: corregir OOB al crear una solicitud SMB2_IOCTL Al usar cifrado, ya sea aplicado por el servidor o al usar la opci\u00f3n de montaje 'seal', el cliente comprimir\u00e1 todos los buffers de solicitud compuestos para el cifrado en un solo iov en smb2_set_next_command(). SMB2_ioctl_init() asigna un peque\u00f1o b\u00fafer (448 bytes) para contener la solicitud SMB2_IOCTL en el primer iov, y si el usuario pasa un b\u00fafer de entrada que es mayor a 328 bytes, smb2_set_next_command() terminar\u00e1 escribiendo el final de @rqst->iov[0].iov_base como se muestra a continuaci\u00f3n: mount.cifs //srv/share /mnt -o ...,seal ln -s $(perl -e \"print('a')for 1..1024\") /mnt/link ERROR: KASAN: slab-out-of-bounds en smb2_set_next_command.cold+0x1d6/0x24c [cifs] Escritura de tama\u00f1o 4116 en la direcci\u00f3n ffff8881148fcab8 por tarea ln/859 CPU: 1 UID: 0 PID: 859 Comm: ln No contaminado 6.12.0-rc3 #1 Nombre del hardware: PC est\u00e1ndar QEMU (Q35 + ICH9, 2009), BIOS 1.16.3-2.fc40 01/04/2014 Seguimiento de llamadas: dump_stack_lvl+0x5d/0x80 ? smb2_set_next_command.cold+0x1d6/0x24c [cifs] print_report+0x156/0x4d9 ? smb2_set_next_command.cold+0x1d6/0x24c [cifs] ? __virt_addr_valid+0x145/0x310 ? __phys_addr+0x46/0x90 ? vfs_symlink+0x1a1/0x2c0 ? __pfx_smb2_compound_op+0x10/0x10 [cifs] ? kmem_cache_free+0x118/0x3e0 ? cifs_get_writable_path+0xeb/0x1a0 [cifs] ? smb2_get_reparse_inode+0x423/0x540 [cifs] ? __pfx_smb2_get_reparse_inode+0x10/0x10 [cifs] ? rcu_is_watching+0x20/0x50 ? __kmalloc_noprof+0x37c/0x480 ? smb2_create_reparse_symlink+0x257/0x490 [cifs] ? __pfx_smb2_create_reparse_symlink+0x10/0x10 [cifs] ? __pfx_smb2_create_reparse_symlink+0x10/0x10 [cifs] ? __buscar_bloqueo_mantenido+0x8a/0xa0 ? __hlock_class+0x32/0xb0 ? __ruta_de_compilaci\u00f3n_desde_dentry_prefijo_opcional+0x19d/0x2e0 [cifs] ? __pfx_make_vfsuid+0x10/0x10 ? __pfx_cifs_symlink+0x10/0x10 [cifs] ? make_vfsgid+0x6b/0xc0 ? permiso_gen\u00e9rico+0x96/0x2d0 vfs_symlink+0x1a1/0x2c0 do_symlinkat+0x108/0x1c0 ? __pfx_do_symlinkat+0x10/0x10 ? strncpy_from_user+0xaa/0x160 __x64_sys_symlinkat+0xb9/0xf0 do_syscall_64+0xbb/0x1d0 entrada_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f08d75c13bb"
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}
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],
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"metrics": {
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"cvssMetricV31": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH",
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"availabilityImpact": "HIGH"
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},
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"exploitabilityScore": 1.8,
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"impactScore": 5.9
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}
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]
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},
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"weaknesses": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-787"
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}
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]
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}
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],
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"configurations": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.0",
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