347 lines
21 KiB
JSON
347 lines
21 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-2023-53213",
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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": "2025-09-15T14:19:21.844Z",
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"datePublished": "2025-09-15T14:21:41.433Z",
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"dateUpdated": "2026-08-05T09:13:06.440Z"
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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": "2026-08-05T09:13:06.440Z"
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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: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()\n\nFix a slab-out-of-bounds read that occurs in kmemdup() called from\nbrcmf_get_assoc_ies().\nThe bug could occur when assoc_info->req_len, data from a URB provided\nby a USB device, is bigger than the size of buffer which is defined as\nWL_EXTRA_BUF_MAX.\n\nAdd the size check for req_len/resp_len of assoc_info.\n\nFound by a modified version of syzkaller.\n\n[ 46.592467][ T7] ==================================================================\n[ 46.594687][ T7] BUG: KASAN: slab-out-of-bounds in kmemdup+0x3e/0x50\n[ 46.596572][ T7] Read of size 3014656 at addr ffff888019442000 by task kworker/0:1/7\n[ 46.598575][ T7]\n[ 46.599157][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Tainted: G O 5.14.0+ #145\n[ 46.601333][ T7] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014\n[ 46.604360][ T7] Workqueue: events brcmf_fweh_event_worker\n[ 46.605943][ T7] Call Trace:\n[ 46.606584][ T7] dump_stack_lvl+0x8e/0xd1\n[ 46.607446][ T7] print_address_description.constprop.0.cold+0x93/0x334\n[ 46.608610][ T7] ? kmemdup+0x3e/0x50\n[ 46.609341][ T7] kasan_report.cold+0x79/0xd5\n[ 46.610151][ T7] ? kmemdup+0x3e/0x50\n[ 46.610796][ T7] kasan_check_range+0x14e/0x1b0\n[ 46.611691][ T7] memcpy+0x20/0x60\n[ 46.612323][ T7] kmemdup+0x3e/0x50\n[ 46.612987][ T7] brcmf_get_assoc_ies+0x967/0xf60\n[ 46.613904][ T7] ? brcmf_notify_vif_event+0x3d0/0x3d0\n[ 46.614831][ T7] ? lock_chain_count+0x20/0x20\n[ 46.615683][ T7] ? mark_lock.part.0+0xfc/0x2770\n[ 46.616552][ T7] ? lock_chain_count+0x20/0x20\n[ 46.617409][ T7] ? mark_lock.part.0+0xfc/0x2770\n[ 46.618244][ T7] ? lock_chain_count+0x20/0x20\n[ 46.619024][ T7] brcmf_bss_connect_done.constprop.0+0x241/0x2e0\n[ 46.620019][ T7] ? brcmf_parse_configure_security.isra.0+0x2a0/0x2a0\n[ 46.620818][ T7] ? __lock_acquire+0x181f/0x5790\n[ 46.621462][ T7] brcmf_notify_connect_status+0x448/0x1950\n[ 46.622134][ T7] ? rcu_read_lock_bh_held+0xb0/0xb0\n[ 46.622736][ T7] ? brcmf_cfg80211_join_ibss+0x7b0/0x7b0\n[ 46.623390][ T7] ? find_held_lock+0x2d/0x110\n[ 46.623962][ T7] ? brcmf_fweh_event_worker+0x19f/0xc60\n[ 46.624603][ T7] ? mark_held_locks+0x9f/0xe0\n[ 46.625145][ T7] ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0\n[ 46.625871][ T7] ? brcmf_cfg80211_join_ibss+0x7b0/0x7b0\n[ 46.626545][ T7] brcmf_fweh_call_event_handler.isra.0+0x90/0x100\n[ 46.627338][ T7] brcmf_fweh_event_worker+0x557/0xc60\n[ 46.627962][ T7] ? brcmf_fweh_call_event_handler.isra.0+0x100/0x100\n[ 46.628736][ T7] ? rcu_read_lock_sched_held+0xa1/0xd0\n[ 46.629396][ T7] ? rcu_read_lock_bh_held+0xb0/0xb0\n[ 46.629970][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0\n[ 46.630649][ T7] process_one_work+0x92b/0x1460\n[ 46.631205][ T7] ? pwq_dec_nr_in_flight+0x330/0x330\n[ 46.631821][ T7] ? rwlock_bug.part.0+0x90/0x90\n[ 46.632347][ T7] worker_thread+0x95/0xe00\n[ 46.632832][ T7] ? __kthread_parkme+0x115/0x1e0\n[ 46.633393][ T7] ? process_one_work+0x1460/0x1460\n[ 46.633957][ T7] kthread+0x3a1/0x480\n[ 46.634369][ T7] ? set_kthread_struct+0x120/0x120\n[ 46.634933][ T7] ret_from_fork+0x1f/0x30\n[ 46.635431][ T7]\n[ 46.635687][ T7] Allocated by task 7:\n[ 46.636151][ T7] kasan_save_stack+0x1b/0x40\n[ 46.636628][ T7] __kasan_kmalloc+0x7c/0x90\n[ 46.637108][ T7] kmem_cache_alloc_trace+0x19e/0x330\n[ 46.637696][ T7] brcmf_cfg80211_attach+0x4a0/0x4040\n[ 46.638275][ T7] brcmf_attach+0x389/0xd40\n[ 46.638739][ T7] brcmf_usb_probe+0x12de/0x1690\n[ 46.639279][ T7] usb_probe_interface+0x2aa/0x760\n[ 46.639820][ T7] really_probe+0x205/0xb70\n[ 46.640342][ T7] __driver_probe_device+0\n---truncated---"
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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:N/A:H",
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"baseScore": 8.1,
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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 - brcmf_get_assoc_ies() runs on association/roam completion and trusts assoc_info req_len/resp_len from the fullmac firmware path driven by a wireless peer association; a malicious AP (or WiFi-NIC firmware compromise, treated as an over-the-air class) within radio range can induce oversized lengths, matching Adjacent scoring for unvalidated WiFi firmware-event bugs.\nAC:L - The attacker fully controls the length fields returned for the assoc_info iovar (malicious AP IE sizes or forged firmware/USB responses) and triggers connect/roam completion deterministically, with no race or layout dependency outside attacker influence.\nPR:N - No account or capability on the victim is required; a same-segment attacker only needs the station to associate (evil twin / open hotspot), and the vulnerable worker runs in kernel context with no authentication gate on the assoc_info response.\nUI:N - Auto-reconnect to an evil twin of a saved SSID, or NetworkManager bringing up a newly attached WiFi interface, completes association without further victim action; the attacker’s presence on the air segment is already priced into AV:A.\nS:U - The OOB read and nl80211 disclosure stay inside the host kernel’s own memory and security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Attacker-controlled req_len/resp_len cause kmemdup() to read far past the 2048-byte extra_buf into adjacent slab, and that data is published to userspace via nl80211 connect/roam netlink multicast—an unbounded kernel heap disclosure.\nI:N - The defect is a pure out-of-bounds read: kmemdup only uses the oversized length as a memcpy source into a freshly allocated buffer, with no out-of-bounds or attacker-controlled write into existing kernel objects.\nA:H - The KASAN report documents a kernel panic on the multi-megabyte OOB read, and even modest oversize past the slab object can oops/panic the connect worker, repeatable on each association."
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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/broadcom/brcm80211/brcmfmac/cfg80211.c"
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],
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"versions": [
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{
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"version": "cf2b448852abd47cee21007b8313fbf962bf3c9a",
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"lessThan": "ac5305e5d227b9af3aae25fa83380d3ff0225b73",
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"status": "affected",
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"lessThan": "0da40e018fd034d87c9460123fa7f897b69fdee7",
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{
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"product": "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/broadcom/brcm80211/brcmfmac/cfg80211.c"
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],
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"versions": [
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{
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"version": "2.6.37",
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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": "2.6.37",
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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": "4.14.315",
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"lessThanOrEqual": "4.14.*",
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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": "4.19.283",
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"lessThanOrEqual": "4.19.*",
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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": "5.4.243",
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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": "5.10.180",
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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": "5.15.110",
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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": "6.1.27",
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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": "6.2.14",
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"lessThanOrEqual": "6.2.*",
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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": "6.3.1",
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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": "2.6.37",
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"versionEndExcluding": "4.14.315"
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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": "2.6.37",
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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": "2.6.37",
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"versionEndExcluding": "5.4.243"
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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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"versionEndExcluding": "5.10.180"
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.37",
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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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": "2.6.37",
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"versionEndExcluding": "6.2.14"
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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": "2.6.37",
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"versionEndExcluding": "6.3.1"
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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": "2.6.37",
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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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||
"url": "https://git.kernel.org/stable/c/ac5305e5d227b9af3aae25fa83380d3ff0225b73"
|
||
},
|
||
{
|
||
"url": "https://git.kernel.org/stable/c/39f9bd880abac6068bedb24a4e16e7bd26bf92da"
|
||
},
|
||
{
|
||
"url": "https://git.kernel.org/stable/c/425eea395f1f5ae349fb55f7fe51d833a5324bfe"
|
||
},
|
||
{
|
||
"url": "https://git.kernel.org/stable/c/549825602e3e6449927ca1ea1a08fd89868439df"
|
||
},
|
||
{
|
||
"url": "https://git.kernel.org/stable/c/936a23293bbb3332bdf4cdb9c1496e80cb0bc2c8"
|
||
},
|
||
{
|
||
"url": "https://git.kernel.org/stable/c/e29661611e6e71027159a3140e818ef3b99f32dd"
|
||
},
|
||
{
|
||
"url": "https://git.kernel.org/stable/c/228186629ea970cc78b7d7d5f593f2d32fddf9f6"
|
||
},
|
||
{
|
||
"url": "https://git.kernel.org/stable/c/21bee3e649d87f78fe8aef6ae02edd3d6f310fd0"
|
||
},
|
||
{
|
||
"url": "https://git.kernel.org/stable/c/0da40e018fd034d87c9460123fa7f897b69fdee7"
|
||
}
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||
],
|
||
"title": "wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()",
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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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||
"cvssV3_1": {
|
||
"scope": "UNCHANGED",
|
||
"version": "3.1",
|
||
"baseScore": 7.1,
|
||
"attackVector": "LOCAL",
|
||
"baseSeverity": "HIGH",
|
||
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
|
||
"integrityImpact": "NONE",
|
||
"userInteraction": "NONE",
|
||
"attackComplexity": "LOW",
|
||
"availabilityImpact": "HIGH",
|
||
"privilegesRequired": "LOW",
|
||
"confidentialityImpact": "HIGH"
|
||
}
|
||
},
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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-2023-53213",
|
||
"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": "2026-01-14T17:48:48.083360Z"
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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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{
|
||
"lang": "en",
|
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"type": "CWE",
|
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"cweId": "CWE-125",
|
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"description": "CWE-125 Out-of-bounds Read"
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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": {
|
||
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
||
"shortName": "CISA-ADP",
|
||
"dateUpdated": "2026-01-14T17:52:57.288Z"
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}
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}
|
||
]
|
||
}
|
||
} |