mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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45 lines
9.4 KiB
JSON
45 lines
9.4 KiB
JSON
{
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"id": "CVE-2024-56571",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-12-27T15:15:16.077",
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"lastModified": "2024-12-27T15:15:16.077",
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"vulnStatus": "Awaiting Analysis",
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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\nmedia: uvcvideo: Require entities to have a non-zero unique ID\n\nPer UVC 1.1+ specification 3.7.2, units and terminals must have a non-zero\nunique ID.\n\n```\nEach Unit and Terminal within the video function is assigned a unique\nidentification number, the Unit ID (UID) or Terminal ID (TID), contained in\nthe bUnitID or bTerminalID field of the descriptor. The value 0x00 is\nreserved for undefined ID,\n```\n\nSo, deny allocating an entity with ID 0 or an ID that belongs to a unit\nthat is already added to the list of entities.\n\nThis also prevents some syzkaller reproducers from triggering warnings due\nto a chain of entities referring to themselves. In one particular case, an\nOutput Unit is connected to an Input Unit, both with the same ID of 1. But\nwhen looking up for the source ID of the Output Unit, that same entity is\nfound instead of the input entity, which leads to such warnings.\n\nIn another case, a backward chain was considered finished as the source ID\nwas 0. Later on, that entity was found, but its pads were not valid.\n\nHere is a sample stack trace for one of those cases.\n\n[ 20.650953] usb 1-1: new high-speed USB device number 2 using dummy_hcd\n[ 20.830206] usb 1-1: Using ep0 maxpacket: 8\n[ 20.833501] usb 1-1: config 0 descriptor??\n[ 21.038518] usb 1-1: string descriptor 0 read error: -71\n[ 21.038893] usb 1-1: Found UVC 0.00 device <unnamed> (2833:0201)\n[ 21.039299] uvcvideo 1-1:0.0: Entity type for entity Output 1 was not initialized!\n[ 21.041583] uvcvideo 1-1:0.0: Entity type for entity Input 1 was not initialized!\n[ 21.042218] ------------[ cut here ]------------\n[ 21.042536] WARNING: CPU: 0 PID: 9 at drivers/media/mc/mc-entity.c:1147 media_create_pad_link+0x2c4/0x2e0\n[ 21.043195] Modules linked in:\n[ 21.043535] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.11.0-rc7-00030-g3480e43aeccf #444\n[ 21.044101] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014\n[ 21.044639] Workqueue: usb_hub_wq hub_event\n[ 21.045100] RIP: 0010:media_create_pad_link+0x2c4/0x2e0\n[ 21.045508] Code: fe e8 20 01 00 00 b8 f4 ff ff ff 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 0f 0b eb e9 0f 0b eb 0a 0f 0b eb 06 <0f> 0b eb 02 0f 0b b8 ea ff ff ff eb d4 66 2e 0f 1f 84 00 00 00 00\n[ 21.046801] RSP: 0018:ffffc9000004b318 EFLAGS: 00010246\n[ 21.047227] RAX: ffff888004e5d458 RBX: 0000000000000000 RCX: ffffffff818fccf1\n[ 21.047719] RDX: 000000000000007b RSI: 0000000000000000 RDI: ffff888004313290\n[ 21.048241] RBP: ffff888004313290 R08: 0001ffffffffffff R09: 0000000000000000\n[ 21.048701] R10: 0000000000000013 R11: 0001888004313290 R12: 0000000000000003\n[ 21.049138] R13: ffff888004313080 R14: ffff888004313080 R15: 0000000000000000\n[ 21.049648] FS: 0000000000000000(0000) GS:ffff88803ec00000(0000) knlGS:0000000000000000\n[ 21.050271] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 21.050688] CR2: 0000592cc27635b0 CR3: 000000000431c000 CR4: 0000000000750ef0\n[ 21.051136] PKRU: 55555554\n[ 21.051331] Call Trace:\n[ 21.051480] <TASK>\n[ 21.051611] ? __warn+0xc4/0x210\n[ 21.051861] ? media_create_pad_link+0x2c4/0x2e0\n[ 21.052252] ? report_bug+0x11b/0x1a0\n[ 21.052540] ? trace_hardirqs_on+0x31/0x40\n[ 21.052901] ? handle_bug+0x3d/0x70\n[ 21.053197] ? exc_invalid_op+0x1a/0x50\n[ 21.053511] ? asm_exc_invalid_op+0x1a/0x20\n[ 21.053924] ? media_create_pad_link+0x91/0x2e0\n[ 21.054364] ? media_create_pad_link+0x2c4/0x2e0\n[ 21.054834] ? media_create_pad_link+0x91/0x2e0\n[ 21.055131] ? _raw_spin_unlock+0x1e/0x40\n[ 21.055441] ? __v4l2_device_register_subdev+0x202/0x210\n[ 21.055837] uvc_mc_register_entities+0x358/0x400\n[ 21.056144] uvc_register_chains+0x1fd/0x290\n[ 21.056413] uvc_probe+0x380e/0x3dc0\n[ 21.056676] ? __lock_acquire+0x5aa/0x26e0\n[ 21.056946] ? find_held_lock+0x33/0xa0\n[ 21.057196] ? kernfs_activate+0x70/0x80\n[ 21.057533] ? usb_match_dy\n---truncated---"
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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: media: uvcvideo: Requerir que las entidades tengan un ID \u00fanico distinto de cero Seg\u00fan la especificaci\u00f3n UVC 1.1+ 3.7.2, las unidades y terminales deben tener un ID \u00fanico distinto de cero. ``` A cada Unidad y Terminal dentro de la funci\u00f3n de video se le asigna un n\u00famero de identificaci\u00f3n \u00fanico, el ID de Unidad (UID) o el ID de Terminal (TID), contenido en el campo bUnitID o bTerminalID del descriptor. El valor 0x00 est\u00e1 reservado para ID indefinido, ``` Por lo tanto, deniega la asignaci\u00f3n de una entidad con ID 0 o un ID que pertenezca a una unidad que ya se haya a\u00f1adido a la lista de entidades. Esto tambi\u00e9n evita que algunos reproductores syzkaller activen advertencias debido a una cadena de entidades que se refieren a s\u00ed mismos. En un caso particular, una Unidad de Salida est\u00e1 conectada a una Unidad de Entrada, ambas con el mismo ID de 1. Pero al buscar el ID de origen de la Unidad de Salida, se encuentra esa misma entidad en lugar de la entidad de entrada, lo que genera dichas advertencias. En otro caso, una cadena hacia atr\u00e1s se consider\u00f3 terminada ya que el ID de origen era 0. M\u00e1s tarde, se encontr\u00f3 esa entidad, pero sus pads no eran v\u00e1lidos. Aqu\u00ed hay un seguimiento de pila de muestra para uno de esos casos. [ 20.650953] usb 1-1: nuevo dispositivo USB de alta velocidad n\u00famero 2 usando dummy_hcd [ 20.830206] usb 1-1: Usando ep0 maxpacket: 8 [ 20.833501] usb 1-1: config 0 descriptor?? [ 21.038518] usb 1-1: descriptor de cadena 0 error de lectura: -71 [ 21.038893] usb 1-1: Se encontr\u00f3 el dispositivo UVC 0.00 (2833:0201) [ 21.039299] uvcvideo 1-1:0.0: \u00a1El tipo de entidad para la entidad Output 1 no se inicializ\u00f3! [ 21.041583] uvcvideo 1-1:0.0: \u00a1El tipo de entidad para la entidad Entrada 1 no se inicializ\u00f3! [ 21.042218] ------------[ cortar aqu\u00ed ]------------ [ 21.042536] ADVERTENCIA: CPU: 0 PID: 9 en drivers/media/mc/mc-entity.c:1147 media_create_pad_link+0x2c4/0x2e0 [ 21.043195] M\u00f3dulos vinculados en: [ 21.043535] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 No contaminado 6.11.0-rc7-00030-g3480e43aeccf #444 [ 21.044101] Nombre del hardware: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 [ 21.044639] Cola de trabajo: usb_hub_wq evento_hub [ 21.045100] RIP: 0010:media_create_pad_link+0x2c4/0x2e0 [ 21.045508] C\u00f3digo: fe e8 20 01 00 00 b8 f4 ff ff ff 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 0f 0b eb e9 0f 0b eb 0a 0f 0b eb 06 <0f> 0b eb 02 0f 0b b8 ea ff ff ff eb d4 66 2e 0f 1f 84 00 00 00 00 [ 21.046801] RSP: 0018:ffffc9000004b318 EFLAGS: 00010246 [ 21.047227] RAX: ffff888004e5d458 RBX: 0000000000000000 RCX: ffffffff818fccf1 [ 21.047719] RDX: 000000000000007b RSI: 0000000000000000 RDI: ffff888004313290 [ 21.048241] RBP: ffff888004313290 R08: 0001ffffffffffff R09: 0000000000000000 [ 21.048701] R10: 0000000000000013 R11: 0001888004313290 R12: 0000000000000003 [ 21.049138] R13: ffff888004313080 R14: ffff888004313080 R15: 0000000000000000 [ 21.049648] FS: 0000000000000000(0000) GS:ffff88803ec00000(0000) knlGS:0000000000000000 [ 21.050271] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.050688] CR2: 0000592cc27635b0 CR3: 000000000431c000 CR4: 0000000000750ef0 [ 21.051136] PKRU: 55555554 [ 21.051331] Rastreo de llamadas: [ 21.051480] [ 21.051611] ? __warn+0xc4/0x210 [ 21.051861] ? media_create_pad_link+0x2c4/0x2e0 [ 21.052252] ? report_bug+0x11b/0x1a0 [ 21.052540] ? trace_hardirqs_on+0x31/0x40 [ 21.052901] ? handle_bug+0x3d/0x70 [ 21.053197] ? exc_invalid_op+0x1a/0x50 [ 21.053511] ? asm_exc_invalid_op+0x1a/0x20 [ 21.053924] ? media_create_pad_link+0x91/0x2e0 [ 21.054364] ? media_create_pad_link+0x2c4/0x2e0 [ 21.054834] ? __v4l2_device_register_subdev+0x202/0x210 [ 21.055837] uvc_mc_register_entities+0x358/0x400 [ 21.056144] uvc_register_chains+0x1fd/0x290 [ 21.056413] uvc_probe+0x380e/0x3dc0 [ 21.056676] ? __lock_acquire+0x5aa/0x26e0 [ 21.056946] ? find_held_lock+0x33/0xa0 [ 21.057196] ? kernfs_activate+0x70/0x80 [ 21.057533] ? usb_match_dy ---truncado---"
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}
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],
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"metrics": {},
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/19464d73225224dca31e2fd6e7d6418facf5facb",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/3dd075fe8ebbc6fcbf998f81a75b8c4b159a6195",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/4f74bd307f078c0605b9f6f1edb8337dee35fa2e",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/72ed66623953106d15825513c82533a03ba29ecd",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/b11813bc2f4eee92695075148c9ba996f54feeba",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/bde4e7c1527151b596089b3f984818ab537eeb7f",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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}
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]
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} |