363 lines
19 KiB
JSON
363 lines
19 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-2024-53239",
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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": "2024-11-19T17:17:25.026Z",
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"datePublished": "2024-12-27T13:50:24.896Z",
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"dateUpdated": "2026-08-05T11:44:48.839Z"
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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": "2026-08-05T11:44:48.839Z"
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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\nALSA: 6fire: Release resources at card release\n\nThe current 6fire code tries to release the resources right after the\ncall of usb6fire_chip_abort(). But at this moment, the card object\nmight be still in use (as we're calling snd_card_free_when_closed()).\n\nFor avoid potential UAFs, move the release of resources to the card's\nprivate_free instead of the manual call of usb6fire_chip_destroy() at\nthe USB disconnect callback."
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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:H/A:H",
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"baseScore": 7.8,
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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:L - Exploitation is driven entirely through local syscalls on ALSA character devices (`/dev/snd/pcmC*D*`, `/dev/snd/midiC*D*`) — the attacker holds an fd open across the card teardown, sprays the kernel heap to reclaim the freed `pcm_runtime`/`midi_runtime`, and then triggers the dereference with `close()`. This matches the AV:L scoring used for the sibling ALSA-USB disconnect CVEs in the same patch series (CVE-2024-56531).\nAC:L - There is no race to win: the free happens at teardown and the use happens at a moment the attacker chooses (`close()`), so the reclaim window is unbounded and the attacker can spray the corresponding kmalloc caches at leisure. The object sizes are stable and deterministic, making reliable reclaim straightforward.\nPR:L - The attacker only needs an ordinary unprivileged local account with access to the sound devices — granted by default to the active seat via systemd-logind uaccess ACLs or `audio` group membership. No capability, root, or namespace privilege is required.\nUI:N - The attacker performs every step themselves — opening the PCM/MIDI device, causing the card teardown, spraying the heap, and closing the fd. No action by a separate victim user is needed for the use-after-free to fire.\nS:U - The corruption is confined to kernel heap memory managed by the same kernel security authority; there is no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The freed `pcm_runtime`/`midi_runtime`/`comm_runtime`/`control_runtime` objects are reclaimable by attacker-controlled or victim-owned allocations, and the driver then reads chained pointers (`rt->chip->control`, `rt->chip->dev`, `sub->instance->runtime`) out of them, giving an attacker-steerable read primitive into arbitrary kernel memory.\nI:H - `usb6fire_pcm_close()` writes into the freed object (`sub->instance`, `sub->active`, `rt->stream_state`, `rt->rate`) and `usb6fire_pcm_stream_stop()` performs an indirect call via `ctrl_rt->update_streaming()` — a function pointer read from reclaimed memory; the rawmidi path additionally calls `usb_submit_urb()` on a freed embedded `struct urb`, yielding a controlled `urb->complete` callback and full control-flow hijack potential.\nA:H - Even without controlled reclaim, dereferencing and locking the freed structures (`mutex_lock(&rt->stream_mutex)`, `spin_lock_irqsave(&rt->out_lock)`) on poisoned or reused slab memory reliably produces an oops, lock corruption, or kernel panic, taking the system down."
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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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"sound/usb/6fire/chip.c"
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],
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"versions": [
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{
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"version": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9",
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"lessThan": "74357d0b5cd3ef544752bc9f21cbeee4902fae6c",
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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": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9",
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"lessThan": "273eec23467dfbfbd0e4c10302579ba441fb1e13",
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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": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9",
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"lessThan": "f2d06d4e129e2508e356136f99bb20a332ff1a00",
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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": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9",
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"lessThan": "b889a7d68d7e76b8795b754a75c91a2d561d5e8c",
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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": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9",
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"lessThan": "ea8cc56db659cf0ae57073e32a4735ead7bd7ee3",
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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": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9",
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"lessThan": "b754e831a94f82f2593af806741392903f359168",
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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": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9",
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"lessThan": "0df7f4b5cc10f5adf98be0845372e9eef7bb5b09",
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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": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9",
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"lessThan": "57860a80f03f9dc69a34a5c37b0941ad032a0a8c",
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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": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9",
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"lessThan": "a0810c3d6dd2d29a9b92604d682eacd2902ce947",
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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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"sound/usb/6fire/chip.c"
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],
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"versions": [
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{
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"version": "2.6.39",
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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": "2.6.39",
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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": "4.19.325",
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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": "5.4.287",
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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": "5.10.231",
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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": "5.15.174",
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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": "6.1.120",
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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": "6.6.64",
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"lessThanOrEqual": "6.6.*",
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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": "6.11.11",
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"lessThanOrEqual": "6.11.*",
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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": "6.12.2",
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"lessThanOrEqual": "6.12.*",
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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": "6.13",
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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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"url": "https://git.kernel.org/stable/c/74357d0b5cd3ef544752bc9f21cbeee4902fae6c"
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{
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"url": "https://git.kernel.org/stable/c/273eec23467dfbfbd0e4c10302579ba441fb1e13"
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},
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{
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"url": "https://git.kernel.org/stable/c/f2d06d4e129e2508e356136f99bb20a332ff1a00"
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},
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{
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"url": "https://git.kernel.org/stable/c/b889a7d68d7e76b8795b754a75c91a2d561d5e8c"
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},
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{
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"url": "https://git.kernel.org/stable/c/ea8cc56db659cf0ae57073e32a4735ead7bd7ee3"
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},
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{
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"url": "https://git.kernel.org/stable/c/b754e831a94f82f2593af806741392903f359168"
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},
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{
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"url": "https://git.kernel.org/stable/c/0df7f4b5cc10f5adf98be0845372e9eef7bb5b09"
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},
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{
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"url": "https://git.kernel.org/stable/c/57860a80f03f9dc69a34a5c37b0941ad032a0a8c"
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},
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{
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"url": "https://git.kernel.org/stable/c/a0810c3d6dd2d29a9b92604d682eacd2902ce947"
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}
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],
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"title": "ALSA: 6fire: Release resources at card release",
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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": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 7.8,
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"attackVector": "LOCAL",
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"integrityImpact": "HIGH",
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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-2024-53239",
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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": "2025-02-10T17:12:52.535037Z"
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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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"cweId": "CWE-416",
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"description": "CWE-416 Use After Free"
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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": "2025-02-10T17:21:08.762Z"
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}
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},
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{
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
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},
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{
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"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
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}
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],
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2025-11-03T20:48:08.091Z"
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}
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}
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]
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}
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} |