283 lines
14 KiB
JSON
283 lines
14 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-2023-53321",
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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": "2025-09-16T16:08:59.563Z",
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"datePublished": "2025-09-16T16:11:57.206Z",
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"dateUpdated": "2026-08-05T09:13:30.113Z"
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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": "2026-08-05T09:13:30.113Z"
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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: mac80211_hwsim: drop short frames\n\nWhile technically some control frames like ACK are shorter and\nend after Address 1, such frames shouldn't be forwarded through\nwmediumd or similar userspace, so require the full 3-address\nheader to avoid accessing invalid memory if shorter frames are\npassed in."
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}
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],
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{
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"version": "3.1",
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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 bug is reached via the MAC80211_HWSIM generic netlink HWSIM_CMD_FRAME command (sendmsg on a local genetlink socket into hwsim_cloned_frame_received_nl), not via on-air Wi‑Fi frames or a remote network protocol; virtio is an alternate local/VM-test path, still not Network/Adjacent.\nAC:L - Once the attacker is the registered wmediumd for a radio (or virtio mode is enabled), they fully control HWSIM_ATTR_FRAME length and can reliably send a frame shorter than sizeof(struct ieee80211_hdr_3addr) with no race or other attacker-uncontrollable condition.\nPR:L - HWSIM_CMD_FRAME itself has no genl capability flag, but injecting frames requires being the registered wmediumd; HWSIM_CMD_REGISTER (and NEW_RADIO) use GENL_UNS_ADMIN_PERM, which is CAP_NET_ADMIN in the caller's user_ns and is obtainable by an unprivileged user via user+net namespaces.\nUI:N - The attacker triggers the path entirely with their own netlink REGISTER/NEW_RADIO and FRAME messages; no separate victim action is required.\nS:U - The invalid read and any resulting fault stay inside the host kernel mac80211_hwsim/mac80211 authority and do not cross a VM, IOMMU, or sandbox boundary on the primary netlink attack path.\nC:H - Short frames cause mac80211_hwsim_rx to read hdr->addr1/addr2 past the copied skb payload into uninitialized/out-of-bounds skb-head heap memory (KMSAN uninit-value), which is an OOB read of kernel memory and scores Confidentiality High under the OOB-read guidance.\nI:N - The defect is a read of uninitialized/past-end frame header bytes only; there is no OOB write, UAF, or other integrity or control-flow corruption primitive, and mac80211 later length-checks before further parsing.\nA:H - Accessing past the valid frame data into invalid skb memory can produce a kernel fault/oops under memory debugging or tight allocations (as reflected by the sanitizer finding that motivated the fix), so Availability is scored High."
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}
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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": "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/virtual/mac80211_hwsim.c"
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],
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"drivers/net/wireless/virtual/mac80211_hwsim.c"
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],
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"versions": [
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{
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"version": "5.4",
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"status": "affected"
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},
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{
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"version": "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": "5.4.257",
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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": "5.10.197",
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"status": "unaffected",
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},
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{
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"version": "5.15.133",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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},
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{
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"version": "6.1.55",
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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": "6.5.5",
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"lessThanOrEqual": "6.5.*",
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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": "6.6",
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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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"cpeApplicability": [
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/3beb97bed860d95b14ad23578ce8ddaea62023db"
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}
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"title": "wifi: mac80211_hwsim: drop short frames",
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{
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"metrics": [
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"scope": "UNCHANGED",
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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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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "HIGH"
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}
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},
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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-2023-53321",
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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": "2026-01-14T18:27:28.261822Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"description": "CWE-noinfo Not enough information"
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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": "2026-01-14T18:32:58.479Z"
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}
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}
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]
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}
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} |