CVE-2024-43883

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2024-43883", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-17T09:11:59.287Z", "datePublished": "2024-08-23T13:08:10.508Z", "dateUpdated": "2026-08-05T11:36:58.793Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:36:58.793Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: vhci-hcd: Do not drop references before new references are gained\n\nAt a few places the driver carries stale pointers\nto references that can still be used. Make sure that does not happen.\nThis strictly speaking closes ZDI-CAN-22273, though there may be\nsimilar races in the driver."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL"}, "scenarios": [{"lang": "en", "value": "AV:N - vhci-hcd is a virtual host controller whose transport is an unauthenticated TCP socket, not a physical port; `vhci_rx_pdu()` processes attacker-supplied PDUs from the remote USB/IP peer and converts a malformed command or short read directly into `VDEV_EVENT_ERROR_TCP` \u2192 `vhci_device_reset()`, the vulnerable put path. A malicious or compromised USB/IP server (or an on-path attacker, since USB/IP has no integrity protection) drives the bug entirely over the network.\nAC:L - The attacker controls both sides of the race \u2014 it forces unlimited re-enumerations by failing URBs (usb-storage error recovery and hub retry loops re-issue SET_ADDRESS/GET_DESCRIPTOR to devnum 0) and fires the reset event on demand with a single bad PDU byte. It also observes the GET_DESCRIPTOR-to-device-0 CMD_SUBMIT on the wire, so it knows precisely when the put/assign window opens, and can retry indefinitely.\nPR:N - The USB/IP client performs no authentication on received PDUs \u2014 `vhci_rx_loop()` just reads and dispatches whatever the peer sends, so the remote attacker needs no credentials on the target. Even in the local framing, `USBDEVFS_RESET` is gated only on `FMODE_WRITE` of the usbfs node with no capability check.\nUI:N - In the targeted deployments (thin clients, VDI USB redirection, device farms, industrial gateways) the attachment is established automatically by a service, and the attacker triggers both re-enumeration and the reset event itself during normal operation. No victim action is required at attack time.\nS:U - The use-after-free corrupts kernel heap memory within the same kernel security authority; there is no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The double `usb_put_dev()` frees a live `struct usb_device` while `vdev->udev` and in-flight URBs still reference it, and the remote controls RET_SUBMIT buffer contents/sizes for reliable slab reclaim, yielding an arbitrary read primitive. `port_show_vhci()` additionally prints `dev_name()` from the freed object into `/sys/devices/platform/vhci_hcd.0/status`, directly leaking reclaimed heap content.\nI:H - After the premature free, `usb_get_dev()` performs a refcount increment into freed memory (a write at a controlled offset), and subsequent dereferences of `udev->dev.driver`, `udev->bus`, and the kobject release path give function-pointer control. This is a classic UAF exploitable for heap corruption and control-flow hijack to kernel code execution.\nA:H - The reference-count underflow and stale-pointer dereference produce refcount_t warnings, oopses, and panics, and `vdev->udev` can also be observed as NULL/freed by concurrent readers. The remote peer can trigger this repeatedly, making a reliable kernel crash trivial."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/usb/usbip/vhci_hcd.c"], "versions": [{"version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "lessThan": "5a3c473b28ae1c1f7c4dc129e30cb19ae6e96f89", "status": "affected", "versionType": "git"}, {"version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "lessThan": "9c3746ce8d8fcb3a2405644fc0eec7fc5312de80", "status": "affected", "versionType": "git"}, {"version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "lessThan": "4dacdb9720aaab10b6be121eae55820174d97174", "status": "affected", "versionType": "git"}, {"version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "lessThan": "e8c1e606dab8c56cf074b43b98d0805de7322ba2", "status": "affected", "versionType": "git"}, {"version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "lessThan": "585e6bc7d0a9bf73a8be3d3fb34e86b90cc61a14", "status": "affected", "versionType": "git"}, {"version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "lessThan": "128e82e41cf7d74a562726c1587d9d2ede1a0a37", "status": "affected", "versionType": "git"}, {"version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "lessThan": "c3d0857b7fc2c49f68f89128a5440176089a8f54", "status": "affected", "versionType": "git"}, {"version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "lessThan": "afdcfd3d6fcdeca2735ca8d994c5f2d24a368f0a", "status": "affected", "versionType": "git"}, {"version": "96ea4801d2035f89fc4ec4a67f49a18c35cb6715", "status": "affected", "versionType": "git"}, {"version": "075b4e6a982d38121250c090f7b9294314ac1b19", "status": "affected", "versionType": "git"}, {"version": "436e52f1a628233f080605dd736594df250897ca", "status": "affected", "versionType": "git"}, {"version": "1c8d316294916da7e2a2f1f178ca3f3bd6d7b531", "status": "affected", "versionType": "git"}, {"version": "927c3fa44e24300eb827ab9f9dacce6dff9c9bb7", "status": "affected", "versionType": "git"}, {"version": "2.6.32.30", "lessThan": "2.6.33", "status": "affected", "versionType": "semver"}, {"version": "2.6.33.8", "lessThan": "2.6.34", "status": "affected", "versionType": "semver"}, {"version": "2.6.34.10", "lessThan": "2.6.35", "status": "affected", "versionType": "semver"}, {"version": "2.6.35.12", "lessThan": "2.6.36", "status": "affected", "versionType": "semver"}, {"version": "2.6.37.3", "lessThan": "2.6.38", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/usb/usbip/vhci_hcd.c"], "versions": [{"version": "2.6.38", "status": "affected"}, {"version": "0", "lessThan": "2.6.38", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.320", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.282", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.224", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.165", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.105", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.46", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.5", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11", "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": "2.6.38", "versionEndExcluding": "4.19.320"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.38", "versionEndExcluding": "5.4.282"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.38", "versionEndExcluding": "5.10.224"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.38", "versionEndExcluding": "5.15.165"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.38", "versionEndExcluding": "6.1.105"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.38", "versionEndExcluding": "6.6.46"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.38", "versionEndExcluding": "6.10.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.38", "versionEndExcluding": "6.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.32.30"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.33.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.34.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.35.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.37.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/5a3c473b28ae1c1f7c4dc129e30cb19ae6e96f89"}, {"url": "https://git.kernel.org/stable/c/9c3746ce8d8fcb3a2405644fc0eec7fc5312de80"}, {"url": "https://git.kernel.org/stable/c/4dacdb9720aaab10b6be121eae55820174d97174"}, {"url": "https://git.kernel.org/stable/c/e8c1e606dab8c56cf074b43b98d0805de7322ba2"}, {"url": "https://git.kernel.org/stable/c/585e6bc7d0a9bf73a8be3d3fb34e86b90cc61a14"}, {"url": "https://git.kernel.org/stable/c/128e82e41cf7d74a562726c1587d9d2ede1a0a37"}, {"url": "https://git.kernel.org/stable/c/c3d0857b7fc2c49f68f89128a5440176089a8f54"}, {"url": "https://git.kernel.org/stable/c/afdcfd3d6fcdeca2735ca8d994c5f2d24a368f0a"}], "title": "usb: vhci-hcd: Do not drop references before new references are gained", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-43883", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T15:32:14.861945Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-12T17:33:09.242Z"}}, {"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:06:39.422Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:06:39.422Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-43883", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T15:32:14.861945Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:15.504Z"}}], "cna": {"title": "usb: vhci-hcd: Do not drop references before new references are gained", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 9.8, "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "AV:N - vhci-hcd is a virtual host controller whose transport is an unauthenticated TCP socket, not a physical port; `vhci_rx_pdu()` processes attacker-supplied PDUs from the remote USB/IP peer and converts a malformed command or short read directly into `VDEV_EVENT_ERROR_TCP` \u2192 `vhci_device_reset()`, the vulnerable put path. A malicious or compromised USB/IP server (or an on-path attacker, since USB/IP has no integrity protection) drives the bug entirely over the network.\nAC:L - The attacker controls both sides of the race \u2014 it forces unlimited re-enumerations by failing URBs (usb-storage error recovery and hub retry loops re-issue SET_ADDRESS/GET_DESCRIPTOR to devnum 0) and fires the reset event on demand with a single bad PDU byte. It also observes the GET_DESCRIPTOR-to-device-0 CMD_SUBMIT on the wire, so it knows precisely when the put/assign window opens, and can retry indefinitely.\nPR:N - The USB/IP client performs no authentication on received PDUs \u2014 `vhci_rx_loop()` just reads and dispatches whatever the peer sends, so the remote attacker needs no credentials on the target. Even in the local framing, `USBDEVFS_RESET` is gated only on `FMODE_WRITE` of the usbfs node with no capability check.\nUI:N - In the targeted deployments (thin clients, VDI USB redirection, device farms, industrial gateways) the attachment is established automatically by a service, and the attacker triggers both re-enumeration and the reset event itself during normal operation. No victim action is required at attack time.\nS:U - The use-after-free corrupts kernel heap memory within the same kernel security authority; there is no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The double `usb_put_dev()` frees a live `struct usb_device` while `vdev->udev` and in-flight URBs still reference it, and the remote controls RET_SUBMIT buffer contents/sizes for reliable slab reclaim, yielding an arbitrary read primitive. `port_show_vhci()` additionally prints `dev_name()` from the freed object into `/sys/devices/platform/vhci_hcd.0/status`, directly leaking reclaimed heap content.\nI:H - After the premature free, `usb_get_dev()` performs a refcount increment into freed memory (a write at a controlled offset), and subsequent dereferences of `udev->dev.driver`, `udev->bus`, and the kobject release path give function-pointer control. This is a classic UAF exploitable for heap corruption and control-flow hijack to kernel code execution.\nA:H - The reference-count underflow and stale-pointer dereference produce refcount_t warnings, oopses, and panics, and `vdev->udev` can also be observed as NULL/freed by concurrent readers. The remote peer can trigger this repeatedly, making a reliable kernel crash trivial."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "lessThan": "5a3c473b28ae1c1f7c4dc129e30cb19ae6e96f89", "versionType": "git"}, {"status": "affected", "version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "lessThan": "9c3746ce8d8fcb3a2405644fc0eec7fc5312de80", "versionType": "git"}, {"status": "affected", "version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "lessThan": "4dacdb9720aaab10b6be121eae55820174d97174", "versionType": "git"}, {"status": "affected", "version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "lessThan": "e8c1e606dab8c56cf074b43b98d0805de7322ba2", "versionType": "git"}, {"status": "affected", "version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "lessThan": "585e6bc7d0a9bf73a8be3d3fb34e86b90cc61a14", "versionType": "git"}, {"status": "affected", "version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "lessThan": "128e82e41cf7d74a562726c1587d9d2ede1a0a37", "versionType": "git"}, {"status": "affected", "version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "lessThan": "c3d0857b7fc2c49f68f89128a5440176089a8f54", "versionType": "git"}, {"status": "affected", "version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "lessThan": "afdcfd3d6fcdeca2735ca8d994c5f2d24a368f0a", "versionType": "git"}, {"status": "affected", "version": "96ea4801d2035f89fc4ec4a67f49a18c35cb6715", "versionType": "git"}, {"status": "affected", "version": "075b4e6a982d38121250c090f7b9294314ac1b19", "versionType": "git"}, {"status": "affected", "version": "436e52f1a628233f080605dd736594df250897ca", "versionType": "git"}, {"status": "affected", "version": "1c8d316294916da7e2a2f1f178ca3f3bd6d7b531", "versionType": "git"}, {"status": "affected", "version": "927c3fa44e24300eb827ab9f9dacce6dff9c9bb7", "versionType": "git"}, {"status": "affected", "version": "2.6.32.30", "lessThan": "2.6.33", "versionType": "semver"}, {"status": "affected", "version": "2.6.33.8", "lessThan": "2.6.34", "versionType": "semver"}, {"status": "affected", "version": "2.6.34.10", "lessThan": "2.6.35", "versionType": "semver"}, {"status": "affected", "version": "2.6.35.12", "lessThan": "2.6.36", "versionType": "semver"}, {"status": "affected", "version": "2.6.37.3", "lessThan": "2.6.38", "versionType": "semver"}], "programFiles": ["drivers/usb/usbip/vhci_hcd.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2.6.38"}, {"status": "unaffected", "version": "0", "lessThan": "2.6.38", "versionType": "semver"}, {"status": "unaffected", "version": "4.19.320", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.282", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.224", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.165", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.105", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.46", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.10.5", "versionType": "semver", "lessThanOrEqual": "6.10.*"}, {"status": "unaffected", "version": "6.11", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/usb/usbip/vhci_hcd.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/5a3c473b28ae1c1f7c4dc129e30cb19ae6e96f89"}, {"url": "https://git.kernel.org/stable/c/9c3746ce8d8fcb3a2405644fc0eec7fc5312de80"}, {"url": "https://git.kernel.org/stable/c/4dacdb9720aaab10b6be121eae55820174d97174"}, {"url": "https://git.kernel.org/stable/c/e8c1e606dab8c56cf074b43b98d0805de7322ba2"}, {"url": "https://git.kernel.org/stable/c/585e6bc7d0a9bf73a8be3d3fb34e86b90cc61a14"}, {"url": "https://git.kernel.org/stable/c/128e82e41cf7d74a562726c1587d9d2ede1a0a37"}, {"url": "https://git.kernel.org/stable/c/c3d0857b7fc2c49f68f89128a5440176089a8f54"}, {"url": "https://git.kernel.org/stable/c/afdcfd3d6fcdeca2735ca8d994c5f2d24a368f0a"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: vhci-hcd: Do not drop references before new references are gained\n\nAt a few places the driver carries stale pointers\nto references that can still be used. Make sure that does not happen.\nThis strictly speaking closes ZDI-CAN-22273, though there may be\nsimilar races in the driver."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.19.320", "versionStartIncluding": "2.6.38"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.282", "versionStartIncluding": "2.6.38"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.224", "versionStartIncluding": "2.6.38"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.165", "versionStartIncluding": "2.6.38"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.105", "versionStartIncluding": "2.6.38"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.46", "versionStartIncluding": "2.6.38"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.10.5", "versionStartIncluding": "2.6.38"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11", "versionStartIncluding": "2.6.38"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "2.6.32.30"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "2.6.33.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "2.6.34.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "2.6.35.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "2.6.37.3"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:36:58.793Z"}}}, "cveMetadata": {"cveId": "CVE-2024-43883", "state": "PUBLISHED", "dateUpdated": "2026-08-05T11:36:58.793Z", "dateReserved": "2024-08-17T09:11:59.287Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-08-23T13:08:10.508Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/usb/usbip/vhci_hcd.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "5a3c473b28ae1c1f7c4dc129e30cb19ae6e96f89", "status": "affected", "version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "versionType": "git"}, {"lessThan": "9c3746ce8d8fcb3a2405644fc0eec7fc5312de80", "status": "affected", "version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "versionType": "git"}, {"lessThan": "4dacdb9720aaab10b6be121eae55820174d97174", "status": "affected", "version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "versionType": "git"}, {"lessThan": "e8c1e606dab8c56cf074b43b98d0805de7322ba2", "status": "affected", "version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "versionType": "git"}, {"lessThan": "585e6bc7d0a9bf73a8be3d3fb34e86b90cc61a14", "status": "affected", "version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "versionType": "git"}, {"lessThan": "128e82e41cf7d74a562726c1587d9d2ede1a0a37", "status": "affected", "version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "versionType": "git"}, {"lessThan": "c3d0857b7fc2c49f68f89128a5440176089a8f54", "status": "affected", "version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "versionType": "git"}, {"lessThan": "afdcfd3d6fcdeca2735ca8d994c5f2d24a368f0a", "status": "affected", "version": "7606ee8aa33287dd3e6eb44c78541b87a413a325", "versionType": "git"}, {"status": "affected", "version": "96ea4801d2035f89fc4ec4a67f49a18c35cb6715", "versionType": "git"}, {"status": "affected", "version": "075b4e6a982d38121250c090f7b9294314ac1b19", "versionType": "git"}, {"status": "affected", "version": "436e52f1a628233f080605dd736594df250897ca", "versionType": "git"}, {"status": "affected", "version": "1c8d316294916da7e2a2f1f178ca3f3bd6d7b531", "versionType": "git"}, {"status": "affected", "version": "927c3fa44e24300eb827ab9f9dacce6dff9c9bb7", "versionType": "git"}, {"lessThan": "2.6.33", "status": "affected", "version": "2.6.32.30", "versionType": "semver"}, {"lessThan": "2.6.34", "status": "affected", "version": "2.6.33.8", "versionType": "semver"}, {"lessThan": "2.6.35", "status": "affected", "version": "2.6.34.10", "versionType": "semver"}, {"lessThan": "2.6.36", "status": "affected", "version": "2.6.35.12", "versionType": "semver"}, {"lessThan": "2.6.38", "status": "affected", "version": "2.6.37.3", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/usb/usbip/vhci_hcd.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.38"}, {"lessThan": "2.6.38", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.320", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.282", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.224", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.165", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.105", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.46", "versionType": "semver"}, {"lessThanOrEqual": "6.10.*", "status": "unaffected", "version": "6.10.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.11", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0B4EF915-550B-45E5-B2CA-648FEACD60FC", "versionEndExcluding": "4.19.320", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A8961D98-9ACF-4188-BA88-44038B14BC28", "versionEndExcluding": "5.4.282", "versionStartIncluding": "4.20", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5CCEDF13-293D-4E64-B501-4409D0365AFE", "versionEndExcluding": "5.10.224", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B4E2B568-3171-41DE-B519-F2B1A3600D94", "versionEndExcluding": "5.15.165", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "89BEB24B-0F37-4C92-A397-564DA7CD8EE9", "versionEndExcluding": "6.1.105", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FA11941E-81FB-484C-B583-881EEB488340", "versionEndExcluding": "6.6.46", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D074AE50-4A5E-499C-A2FD-75FD60DEA560", "versionEndExcluding": "6.10.5", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*", "matchCriteriaId": "8B3CE743-2126-47A3-8B7C-822B502CF119", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*", "matchCriteriaId": "4DEB27E7-30AA-45CC-8934-B89263EF3551", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: vhci-hcd: Do not drop references before new references are gained\n\nAt a few places the driver carries stale pointers\nto references that can still be used. Make sure that does not happen.\nThis strictly speaking closes ZDI-CAN-22273, though there may be\nsimilar races in the driver."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: vhci-hcd: no descartar referencias antes de obtener nuevas referencias. En algunos lugares, el controlador incluye punteros obsoletos a referencias que a\u00fan se pueden utilizar. Aseg\u00farate de que eso no suceda. Esto cierra estrictamente ZDI-CAN-22273, aunque puede haber ejecuciones similares en el driver."}], "id": "CVE-2024-43883", "lastModified": "2026-08-04T11:19:58.197", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-43883", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T15:32:14.861945Z", "version": "2.0.3"}}]}, "published": "2024-08-23T13:15:03.873", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/128e82e41cf7d74a562726c1587d9d2ede1a0a37"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4dacdb9720aaab10b6be121eae55820174d97174"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/585e6bc7d0a9bf73a8be3d3fb34e86b90cc61a14"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5a3c473b28ae1c1f7c4dc129e30cb19ae6e96f89"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9c3746ce8d8fcb3a2405644fc0eec7fc5312de80"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/afdcfd3d6fcdeca2735ca8d994c5f2d24a368f0a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c3d0857b7fc2c49f68f89128a5440176089a8f54"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e8c1e606dab8c56cf074b43b98d0805de7322ba2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: usb: vhci-hcd: Do not drop references before new references are gained", "id": "2307555", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2307555"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "status": "draft"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nusb: vhci-hcd: Do not drop references before new references are gained\nAt a few places the driver carries stale pointers\nto references that can still be used. Make sure that does not happen.\nThis strictly speaking closes ZDI-CAN-22273, though there may be\nsimilar races in the driver."], "name": "CVE-2024-43883", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-08-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-43883\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-43883\nhttps://lore.kernel.org/linux-cve-announce/2024082313-CVE-2024-43883-a594@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-13T11:06:26.037486+00:00", "updated": "2025-07-13T11:06:26.037585+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}