235 lines
12 KiB
JSON
235 lines
12 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-2022-49023",
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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": "2024-08-22T01:27:53.649Z",
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"datePublished": "2024-10-21T20:06:29.901Z",
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"dateUpdated": "2026-08-05T08:53:30.326Z"
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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": "2026-08-05T08:53:30.326Z"
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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: cfg80211: fix buffer overflow in elem comparison\n\nFor vendor elements, the code here assumes that 5 octets\nare present without checking. Since the element itself is\nalready checked to fit, we only need to check the length."
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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:L/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:A - The bug is reached by injecting crafted 802.11 Beacon/Probe Response frames with Multiple BSSID elements containing short vendor IEs; exploitation requires adjacency on the Wi‑Fi RF segment, matching WiFi frame-injection guidance.\nAC:L - An attacker fully controls frame contents and can reliably include a vendor IE with length < 5 in both the transmitted BSS IEs and an MBSSID nontransmitted profile; success does not depend on races or unpredictable victim state beyond ordinary Wi‑Fi reception/scanning.\nPR:N - Frames are processed in the unauthenticated scan/MLME RX path before any association or credentials; no local account or capability is required.\nUI:N - cfg80211/mac80211 ingest these management frames during normal scanning and BSS updates without requiring a deliberate user action beyond having Wi‑Fi operating.\nS:U - Impact remains within the local kernel’s BSS/IE handling authority; there is no VM, IOMMU, or other security-authority boundary crossing.\nC:L - The defect is a strictly bounded out-of-bounds read of at most 5 bytes used only for vendor-IE matching (small bounded OOB read), not an arbitrary read primitive, so confidentiality impact is Low rather than High.\nI:N - The buggy access is a read-only memcmp; subsequent memcpy lengths still follow validated IE length fields, so this CVE does not provide a write or control-flow integrity primitive.\nA:H - Reading past the end of a kmemdup/slab IE buffer is a memory-safety violation that can fault or oops when the short vendor IE sits at the allocation boundary, so availability impact is High."
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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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"net/wireless/scan.c"
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],
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"versions": [
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{
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"version": "0b8fb8235be8be99a197e8d948fc0a2df8dc261a",
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"lessThan": "f5c2ec288a865dbe3706b09bed12302e9f6d696b",
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"status": "affected",
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"status": "affected",
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"lessThan": "88a6fe3707888bd1893e9741157a7035c4159ab6",
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"status": "affected",
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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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"net/wireless/scan.c"
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],
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"versions": [
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{
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"version": "5.1",
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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": "5.1",
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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": "5.4.226",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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},
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{
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"version": "5.10.158",
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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": "5.15.82",
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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": "6.0.12",
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"lessThanOrEqual": "6.0.*",
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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",
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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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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.1",
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"versionEndExcluding": "5.4.226"
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"versionEndExcluding": "6.0.12"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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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/f5c2ec288a865dbe3706b09bed12302e9f6d696b"
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},
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{
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"url": "https://git.kernel.org/stable/c/9e6b79a3cd17620d467311b30d56f2648f6880aa"
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},
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{
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"url": "https://git.kernel.org/stable/c/88a6fe3707888bd1893e9741157a7035c4159ab6"
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},
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{
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"url": "https://git.kernel.org/stable/c/391cb872553627bdcf236c03ee7d5adb275e37e1"
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},
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{
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"url": "https://git.kernel.org/stable/c/9f16b5c82a025cd4c864737409234ddc44fb166a"
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}
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],
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"title": "wifi: cfg80211: fix buffer overflow in elem comparison",
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"x_generator": {
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"engine": "bippy-1.2.0"
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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-2022-49023",
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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": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2024-10-22T13:12:18.800355Z"
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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": "2024-10-22T13:18:36.843Z"
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}
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}
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]
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}
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} |