138 lines
7.6 KiB
JSON
138 lines
7.6 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2025-38661",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-04-16T04:51:24.031Z",
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"datePublished": "2025-08-22T16:02:54.362Z",
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"dateUpdated": "2026-08-05T12:03:48.256Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:03:48.256Z"
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},
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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\nplatform/x86: alienware-wmi-wmax: Fix `dmi_system_id` array\n\nAdd missing empty member to `awcc_dmi_table`."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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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:N/A:H",
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"baseScore": 7.1,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The defect is in `__init` code of a locally-loaded platform driver reached only through module load/boot on the affected hardware; there is no network, adjacent, or remote-peer input path into `dmi_first_match(awcc_dmi_table)`. Local access is the highest defensible vector since module loading and module-parameter control are local operations.\nAC:L - The out-of-bounds walk happens deterministically every time `alienware_wmax_wmi_init()` runs on a machine exposing WMAX_CONTROL_GUID — no race to win, no memory-layout grooming, and the driver config is default-enabled in distro kernels. Nothing about triggering it depends on conditions outside the attacker's reach.\nPR:L - The over-read executes as part of normal module initialization on affected systems, so it occurs without any privileged action, and consistent with prior kernel CNA scoring of missing-terminator OOB reads (CVE-2025-68195) no elevated privilege is credited. Low is chosen over High per the higher-severity-when-uncertain rule.\nUI:N - The table walk runs automatically during driver init at boot via udev autoload; no victim must open a file, mount anything, or take any other action.\nS:U - The out-of-bounds access and any resulting corruption stay entirely within the kernel's own security authority — no hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - The read is unbounded rather than a few stray bytes: it walks arbitrarily far past the array in `.init.rodata` and, via a 7-bit `slot` value up to 127 indexing the 23-element `dmi_ident[]`, pulls a value from adjacent kernel static data and dereferences it as a string pointer, exposing arbitrary kernel memory to the matching logic.\nI:N - No attacker-controlled write primitive exists — the only writes through the garbage `awcc` pointer are fixed `true` bytes gated behind root-only, non-default `module_param_unsafe` force_* parameters, to an address the attacker cannot steer.\nA:H - Dereferencing an out-of-bounds `dmi_ident[]` entry as a string pointer, and later dereferencing the bogus `driver_data` value cached in the global `awcc`, readily oopses the kernel during boot-time driver initialization; KASAN builds report the out-of-bounds access outright."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/platform/x86/dell/alienware-wmi-wmax.c"
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],
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"versions": [
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{
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"version": "6d7f1b1a5db61c4d654c84e17392916c4ef8ae6f",
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"lessThan": "660bcd9f1f94e623e1316b869b2172b36eb516d7",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "6d7f1b1a5db61c4d654c84e17392916c4ef8ae6f",
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"lessThan": "8346c6af27f1c1410eb314f4be5875fdf1579a10",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/platform/x86/dell/alienware-wmi-wmax.c"
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],
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"versions": [
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{
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"version": "6.15",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.15",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.15.9",
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"lessThanOrEqual": "6.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.16",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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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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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.15",
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"versionEndExcluding": "6.15.9"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.15",
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"versionEndExcluding": "6.16"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/660bcd9f1f94e623e1316b869b2172b36eb516d7"
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},
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{
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"url": "https://git.kernel.org/stable/c/8346c6af27f1c1410eb314f4be5875fdf1579a10"
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}
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],
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"title": "platform/x86: alienware-wmi-wmax: Fix `dmi_system_id` array",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |