270 lines
13 KiB
JSON
270 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-2024-41018",
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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": "2024-07-12T12:17:45.612Z",
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"datePublished": "2024-07-29T06:37:04.372Z",
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"dateUpdated": "2026-08-05T11:34:44.241Z"
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},
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"cna": {
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T11:34:44.241Z"
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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\nfs/ntfs3: Add a check for attr_names and oatbl\n\nAdded out-of-bound checking for *ane (ATTR_NAME_ENTRY)."
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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 - The vulnerable parser is reached only through the local mount path (`mount()` → `ntfs_fill_super()` → `ntfs_loadlog_and_replay()` → `log_replay()`), requiring the attacker to present a crafted NTFS block device or image to the local system. No network or remote-peer input reaches this code.\nAC:L - Every value driving the overflow (`rst->attr_names_len`, `open_attr_len`, and each `ATTR_NAME_ENTRY.off`/`name_bytes`) comes verbatim from the attacker-authored `$LogFile`, so the out-of-bounds walk and the controlled-offset write trigger deterministically on the first mount with no race and no reliance on conditions outside the attacker's control.\nPR:L - On the realistic target (shared workstation, kiosk, automotive/embedded head unit) an unprivileged local user with a session can get a crafted NTFS volume mounted through udisks2/polkit removable-media automount or an fstab/mount helper, so basic local user access suffices rather than real root.\nUI:N - In the automount scenario the attacker triggers the mount themselves by attaching the media; no separate victim has to open a file, run a command, or take any action for `log_replay()` to parse the malicious log.\nS:U - The corruption is confined to kernel heap memory within the same kernel security authority; there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - The unbounded `while (ane->off)` walk reads far past the end of the `attr_names` slab allocation, and the resulting heap corruption of adjacent slab objects (including planting a kernel heap pointer into neighbouring structures) is leverageable into broad kernel memory disclosure.\nI:H - `Add2Ptr(oatbl, le16_to_cpu(ane->off))` gives an attacker-chosen offset of up to 65535 bytes beyond a small `kmemdup()` allocation, at which the code writes an 8-byte kernel pointer plus two attacker-influenced bytes — a controlled out-of-bounds heap write suitable for overwriting adjacent objects and hijacking control flow.\nA:H - Even without full exploitation, the out-of-bounds reads and writes reliably corrupt slab memory or hit unmapped pages during mount, producing an oops or panic."
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}
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]
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}
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"product": "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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"fs/ntfs3/fslog.c"
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"status": "affected",
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"versionType": "semver"
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"status": "unaffected",
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},
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{
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"version": "6.10.2",
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"lessThanOrEqual": "6.10.*",
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"status": "unaffected",
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},
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{
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"version": "6.11",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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