CVE-2024-45006

{"id": "CVE-2024-45006", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"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"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2024-09-04T20:15:08.997", "references": [{"url": "https://git.kernel.org/stable/c/0f0654318e25b2c185e245ba4a591e42fabb5e59", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/365ef7c4277fdd781a695c3553fa157d622d805d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5ad898ae82412f8a689d59829804bff2999dd0ea", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6b99de301d78e1f5249e57ef2c32e1dec3df2bb1", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8fb9d412ebe2f245f13481e4624b40e651570cbd", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a57b0ebabe6862dce0a2e0f13e17941ad72fc56b", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/af8e119f52e9c13e556be9e03f27957554a84656", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ef0a0e616b2789bb804a0ce5e161db03170a85b6", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxhci: Fix Panther point NULL pointer deref at full-speed re-enumeration\n\nre-enumerating full-speed devices after a failed address device command\ncan trigger a NULL pointer dereference.\n\nFull-speed devices may need to reconfigure the endpoint 0 Max Packet Size\nvalue during enumeration. Usb core calls usb_ep0_reinit() in this case,\nwhich ends up calling xhci_configure_endpoint().\n\nOn Panther point xHC the xhci_configure_endpoint() function will\nadditionally check and reserve bandwidth in software. Other hosts do\nthis in hardware\n\nIf xHC address device command fails then a new xhci_virt_device structure\nis allocated as part of re-enabling the slot, but the bandwidth table\npointers are not set up properly here.\nThis triggers the NULL pointer dereference the next time usb_ep0_reinit()\nis called and xhci_configure_endpoint() tries to check and reserve\nbandwidth\n\n[46710.713538] usb 3-1: new full-speed USB device number 5 using xhci_hcd\n[46710.713699] usb 3-1: Device not responding to setup address.\n[46710.917684] usb 3-1: Device not responding to setup address.\n[46711.125536] usb 3-1: device not accepting address 5, error -71\n[46711.125594] BUG: kernel NULL pointer dereference, address: 0000000000000008\n[46711.125600] #PF: supervisor read access in kernel mode\n[46711.125603] #PF: error_code(0x0000) - not-present page\n[46711.125606] PGD 0 P4D 0\n[46711.125610] Oops: Oops: 0000 [#1] PREEMPT SMP PTI\n[46711.125615] CPU: 1 PID: 25760 Comm: kworker/1:2 Not tainted 6.10.3_2 #1\n[46711.125620] Hardware name: Gigabyte Technology Co., Ltd.\n[46711.125623] Workqueue: usb_hub_wq hub_event [usbcore]\n[46711.125668] RIP: 0010:xhci_reserve_bandwidth (drivers/usb/host/xhci.c\n\nFix this by making sure bandwidth table pointers are set up correctly\nafter a failed address device command, and additionally by avoiding\nchecking for bandwidth in cases like this where no actual endpoints are\nadded or removed, i.e. only context for default control endpoint 0 is\nevaluated."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: xhci: Fix Panther point NULL point deref at full-speed re-enumeration reenumerar dispositivos de velocidad completa despu\u00e9s de un comando de dispositivo de direcci\u00f3n fallido puede desencadenar una desreferencia de puntero NULL. Los dispositivos de velocidad completa pueden necesitar reconfigurar el valor 0 Max Packet Size del endpoint durante la enumeraci\u00f3n. Usb core llama a usb_ep0_reinit() en este caso, que termina llamando a xhci_configure_endpoint(). En Panther point xHC, la funci\u00f3n xhci_configure_endpoint() verificar\u00e1 y reservar\u00e1 adicionalmente el ancho de banda en el software. Otros hosts hacen esto en el hardware Si el comando de dispositivo de direcci\u00f3n xHC falla, se asigna una nueva estructura xhci_virt_device como parte de la rehabilitaci\u00f3n de la ranura, pero los punteros de la tabla de ancho de banda no se configuran correctamente aqu\u00ed. Esto activa la desreferencia del puntero NULL la pr\u00f3xima vez que se llama a usb_ep0_reinit() y xhci_configure_endpoint() intenta verificar y reservar el ancho de banda [46710.713538] usb 3-1: nuevo dispositivo USB de velocidad completa n\u00famero 5 que usa xhci_hcd [46710.713699] usb 3-1: el dispositivo no responde a la direcci\u00f3n de configuraci\u00f3n. [46710.917684] usb 3-1: el dispositivo no responde a la direcci\u00f3n de configuraci\u00f3n. [46711.125536] usb 3-1: el dispositivo no acepta la direcci\u00f3n 5, error -71 [46711.125594] ERROR: desreferencia de puntero NULL del kernel, direcci\u00f3n: 0000000000000008 [46711.125600] #PF: acceso de lectura del supervisor en modo kernel [46711.125603] #PF: error_code(0x0000) - p\u00e1gina no presente [46711.125606] PGD 0 P4D 0 [46711.125610] Oops: Oops: 0000 [#1] PREEMPT SMP PTI [46711.125615] CPU: 1 PID: 25760 Comm: kworker/1:2 No contaminado 6.10.3_2 #1 [46711.125620] Nombre del hardware: Gigabyte Technology Co., Ltd. [46711.125623] Cola de trabajo: usb_hub_wq hub_event [usbcore] [46711.125668] RIP: 0010:xhci_reserve_bandwidth (drivers/usb/host/xhci.c Solucione esto asegur\u00e1ndose de que los punteros de la tabla de ancho de banda est\u00e9n configurados correctamente despu\u00e9s de un comando de dispositivo de direcci\u00f3n fallido y, adem\u00e1s, evitando verificar el ancho de banda en casos como este donde no se agregan ni eliminan endpoints reales, es decir, solo se eval\u00faa el contexto para el endpoint de control predeterminado 0."}], "lastModified": "2024-09-06T16:26:52.640", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "69564093-AC65-49E3-B85D-1A63FE8258FE", "versionEndExcluding": "4.19.321", "versionStartIncluding": "4.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8E6B390A-0CE6-44FC-8CD5-BE8226D6D24C", "versionEndExcluding": "5.4.283", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C57B46A9-B105-4792-8481-1870DEFB436A", "versionEndExcluding": "5.10.225", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "913ED6CD-8ACF-48AF-AA18-7880881DD402", "versionEndExcluding": "5.15.166", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "53954FF8-CB48-4302-BC4C-9DA7A88F44A2", "versionEndExcluding": "6.1.107", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9DE9201A-CE6B-4726-BABB-8265EA0F8AE4", "versionEndExcluding": "6.6.48", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D2AFDFD1-D95A-4EB7-843B-5E7659518B67", "versionEndExcluding": "6.10.7", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8B3CE743-2126-47A3-8B7C-822B502CF119"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4DEB27E7-30AA-45CC-8934-B89263EF3551"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E0005AEF-856E-47EB-BFE4-90C46899394D"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}