{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-52477","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-20T12:30:33.298Z","datePublished":"2024-02-29T05:43:10.088Z","dateUpdated":"2026-01-05T10:16:10.886Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-01-05T10:16:10.886Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: hub: Guard against accesses to uninitialized BOS descriptors\n\nMany functions in drivers/usb/core/hub.c and drivers/usb/core/hub.h\naccess fields inside udev->bos without checking if it was allocated and\ninitialized. If usb_get_bos_descriptor() fails for whatever\nreason, udev->bos will be NULL and those accesses will result in a\ncrash:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000018\nPGD 0 P4D 0\nOops: 0000 [#1] PREEMPT SMP NOPTI\nCPU: 5 PID: 17818 Comm: kworker/5:1 Tainted: G W 5.15.108-18910-gab0e1cb584e1 #1 <HASH:1f9e 1>\nHardware name: Google Kindred/Kindred, BIOS Google_Kindred.12672.413.0 02/03/2021\nWorkqueue: usb_hub_wq hub_event\nRIP: 0010:hub_port_reset+0x193/0x788\nCode: 89 f7 e8 20 f7 15 00 48 8b 43 08 80 b8 96 03 00 00 03 75 36 0f b7 88 92 03 00 00 81 f9 10 03 00 00 72 27 48 8b 80 a8 03 00 00 <48> 83 78 18 00 74 19 48 89 df 48 8b 75 b0 ba 02 00 00 00 4c 89 e9\nRSP: 0018:ffffab740c53fcf8 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: ffffa1bc5f678000 RCX: 0000000000000310\nRDX: fffffffffffffdff RSI: 0000000000000286 RDI: ffffa1be9655b840\nRBP: ffffab740c53fd70 R08: 00001b7d5edaa20c R09: ffffffffb005e060\nR10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000\nR13: ffffab740c53fd3e R14: 0000000000000032 R15: 0000000000000000\nFS: 0000000000000000(0000) GS:ffffa1be96540000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000018 CR3: 000000022e80c005 CR4: 00000000003706e0\nCall Trace:\nhub_event+0x73f/0x156e\n? hub_activate+0x5b7/0x68f\nprocess_one_work+0x1a2/0x487\nworker_thread+0x11a/0x288\nkthread+0x13a/0x152\n? process_one_work+0x487/0x487\n? kthread_associate_blkcg+0x70/0x70\nret_from_fork+0x1f/0x30\n\nFall back to a default behavior if the BOS descriptor isn't accessible\nand skip all the functionalities that depend on it: LPM support checks,\nSuper Speed capabilitiy checks, U1/U2 states setup."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/core/hub.c","drivers/usb/core/hub.h"],"versions":[{"version":"0cdd49a1d1a483d80170d9e592f832274e8bce1b","lessThan":"c64e4dca9aefd232b17ac4c779b608b286654e81","status":"affected","versionType":"git"},{"version":"0cdd49a1d1a483d80170d9e592f832274e8bce1b","lessThan":"8e7346bfea56453e31b7421c1c17ca2fb9ed613d","status":"affected","versionType":"git"},{"version":"0cdd49a1d1a483d80170d9e592f832274e8bce1b","lessThan":"6ad3e9fd3632106696692232bf7ff88b9f7e1bc3","status":"affected","versionType":"git"},{"version":"0cdd49a1d1a483d80170d9e592f832274e8bce1b","lessThan":"241f230324337ed5eae3846a554fb6d15169872c","status":"affected","versionType":"git"},{"version":"0cdd49a1d1a483d80170d9e592f832274e8bce1b","lessThan":"528f0ba9f7a4bc1b61c9b6eb591ff97ca37cac6b","status":"affected","versionType":"git"},{"version":"0cdd49a1d1a483d80170d9e592f832274e8bce1b","lessThan":"fb9895ab9533534335fa83d70344b397ac862c81","status":"affected","versionType":"git"},{"version":"0cdd49a1d1a483d80170d9e592f832274e8bce1b","lessThan":"136f69a04e71ba3458d137aec3bb2ce1232c0289","status":"affected","versionType":"git"},{"version":"0cdd49a1d1a483d80170d9e592f832274e8bce1b","lessThan":"f74a7afc224acd5e922c7a2e52244d891bbe44ee","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/core/hub.c","drivers/usb/core/hub.h"],"versions":[{"version":"4.6","status":"affected"},{"version":"0","lessThan":"4.6","status":"unaffected","versionType":"semver"},{"version":"4.14.328","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.297","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.259","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.199","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.136","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.59","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.5.8","lessThanOrEqual":"6.5.*","status":"unaffected","versionType":"semver"},{"version":"6.6","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"4.14.328"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"4.19.297"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"5.4.259"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"5.10.199"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"5.15.136"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.1.59"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.5.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.6"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/c64e4dca9aefd232b17ac4c779b608b286654e81"},{"url":"https://git.kernel.org/stable/c/8e7346bfea56453e31b7421c1c17ca2fb9ed613d"},{"url":"https://git.kernel.org/stable/c/6ad3e9fd3632106696692232bf7ff88b9f7e1bc3"},{"url":"https://git.kernel.org/stable/c/241f230324337ed5eae3846a554fb6d15169872c"},{"url":"https://git.kernel.org/stable/c/528f0ba9f7a4bc1b61c9b6eb591ff97ca37cac6b"},{"url":"https://git.kernel.org/stable/c/fb9895ab9533534335fa83d70344b397ac862c81"},{"url":"https://git.kernel.org/stable/c/136f69a04e71ba3458d137aec3bb2ce1232c0289"},{"url":"https://git.kernel.org/stable/c/f74a7afc224acd5e922c7a2e52244d891bbe44ee"}],"title":"usb: hub: Guard against accesses to uninitialized BOS descriptors","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2023-52477","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-03-05T22:17:48.164174Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:23:00.404Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T23:03:19.940Z"},"title":"CVE Program 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