256 lines
13 KiB
JSON
256 lines
13 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-2023-53589",
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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": "2025-10-04T15:40:38.478Z",
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"datePublished": "2025-10-04T15:44:04.047Z",
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"dateUpdated": "2026-10-15T21:41:31.264Z"
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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": "2026-08-05T09:14:59.706Z"
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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\nwifi: iwlwifi: mvm: don't trust firmware n_channels\n\nIf the firmware sends us a corrupted MCC response with\nn_channels much larger than the command response can be,\nwe might copy far too much (uninitialized) memory and\neven crash if the n_channels is large enough to make it\nrun out of the one page allocated for the FW response.\n\nFix that by checking the lengths. Doing a < comparison\nwould be sufficient, but the firmware should be doing\nit correctly, so check more strictly."
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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:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 8.8,
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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:A - The vulnerable MCC update path is driven over the air — the firmware derives the MCC from 802.11d country IEs in received beacons and notifies the driver via MCC_CHUB_UPDATE_CMD, so an attacker within WiFi range selects the input that drives this code and, in the firmware-compromise case (a real over-the-air class for WiFi NICs), controls the malformed response itself. This matches the adjacent scoring used for equivalent unvalidated-WiFi-firmware-event bugs such as the brcmfmac IF event validation CVE.\nAC:L - Triggering is fully deterministic — a single n_channels field inconsistent with the packet length is enough, with no race to win, no memory-layout grooming, and no victim state dependency. The path executes automatically on every regulatory/MCC update.\nPR:N - No credentials or association are required; iwl_mvm_rx_chub_update_mcc() explicitly bails out when the interface is associated, so the vulnerable path runs precisely in the unauthenticated, pre-association state, and also runs unconditionally during driver init.\nUI:N - Regulatory/MCC updates are processed automatically on beacon reception and at interface bring-up with no user action whatsoever.\nS:U - The out-of-bounds read and write both occur in kernel memory within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - n_channels is unbounded, so the copy reads arbitrarily far past the one-page FW response buffer into adjacent kernel memory, and the copied uninitialized data is turned into regulatory rules that any unprivileged user can read back via NL80211_CMD_GET_REG.\nI:H - resp_len is an int while n_channels * sizeof(__le32) is size_t, so n_channels around 0x40000000 truncates the allocation to a few bytes while the subsequent memcpy() length stays at ~4 GB, producing a heap out-of-bounds write that destroys large amounts of kernel memory.\nA:H - The oversized copy runs off the allocated RX page and the undersized destination buffer, causing a guaranteed kernel oops/panic — exactly the crash the commit message describes."
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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/net/wireless/intel/iwlwifi/mvm/nvm.c"
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],
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"versions": [
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{
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"version": "dcaf9f5ecb6f395152609bdc40660d9b593dca63",
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"lessThan": "e519a404a5bbba37693cb10fa61794a5fce4fd9b",
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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": "dcaf9f5ecb6f395152609bdc40660d9b593dca63",
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"lessThan": "d0d39bed9e95f27a246be91c5929254ac043ed30",
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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": "dcaf9f5ecb6f395152609bdc40660d9b593dca63",
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"lessThan": "05ad5a4d421ce65652fcb24d46b7e273130240d6",
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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": "dcaf9f5ecb6f395152609bdc40660d9b593dca63",
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"lessThan": "557ba100d8cf3661ff8d71c0b4a2cba8db555ec2",
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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": "dcaf9f5ecb6f395152609bdc40660d9b593dca63",
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"lessThan": "c176f03350954b795322de0bfe1d7b514db41f45",
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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": "dcaf9f5ecb6f395152609bdc40660d9b593dca63",
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"lessThan": "682b6dc29d98e857e6ca4bbc077c7dc2899b7473",
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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/net/wireless/intel/iwlwifi/mvm/nvm.c"
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],
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"versions": [
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{
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"version": "4.1",
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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": "4.1",
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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": "5.4.244",
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"lessThanOrEqual": "5.4.*",
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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": "5.10.181",
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"lessThanOrEqual": "5.10.*",
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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": "5.15.113",
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"lessThanOrEqual": "5.15.*",
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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": "6.1.30",
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"lessThanOrEqual": "6.1.*",
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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": "6.3.4",
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"lessThanOrEqual": "6.3.*",
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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": "6.4",
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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": "4.1",
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"versionEndExcluding": "5.4.244"
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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": "4.1",
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"versionEndExcluding": "5.10.181"
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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": "4.1",
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"versionEndExcluding": "5.15.113"
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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": "4.1",
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"versionEndExcluding": "6.1.30"
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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": "4.1",
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"versionEndExcluding": "6.3.4"
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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": "4.1",
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"versionEndExcluding": "6.4"
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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/e519a404a5bbba37693cb10fa61794a5fce4fd9b"
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},
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{
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"url": "https://git.kernel.org/stable/c/d0d39bed9e95f27a246be91c5929254ac043ed30"
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},
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{
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"url": "https://git.kernel.org/stable/c/05ad5a4d421ce65652fcb24d46b7e273130240d6"
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},
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{
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"url": "https://git.kernel.org/stable/c/557ba100d8cf3661ff8d71c0b4a2cba8db555ec2"
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},
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{
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"url": "https://git.kernel.org/stable/c/c176f03350954b795322de0bfe1d7b514db41f45"
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},
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{
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"url": "https://git.kernel.org/stable/c/682b6dc29d98e857e6ca4bbc077c7dc2899b7473"
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}
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],
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"title": "wifi: iwlwifi: mvm: don't trust firmware n_channels",
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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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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2023-53589",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-15T21:35:44.946339Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-15T21:41:31.264Z"
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}
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}
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]
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}
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} |