514 lines
24 KiB
JSON
514 lines
24 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"cveMetadata": {
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"cveId": "CVE-2023-52601",
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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": "2024-03-02T21:55:42.573Z",
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"datePublished": "2024-03-06T06:45:28.715Z",
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"dateUpdated": "2026-08-05T09:10:35.710Z"
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},
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"containers": {
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"dateUpdated": "2026-08-05T09:10:35.710Z"
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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\njfs: fix array-index-out-of-bounds in dbAdjTree\n\nCurrently there is a bound check missing in the dbAdjTree while\naccessing the dmt_stree. To add the required check added the bool is_ctl\nwhich is required to determine the size as suggest in the following\ncommit.\nhttps://lore.kernel.org/linux-kernel-mentees/f9475918-2186-49b8-b801-6f0f9e75f4fa@oracle.com/"
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"metrics": [
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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 requires mounting and operating on a crafted JFS image via local syscalls; JFS is a block filesystem (FS_REQUIRES_DEV, no FS_USERNS_MOUNT) and is not reachable from network packet processing.\nAC:L - A malicious image with corrupted dmap tree metadata (e.g. leafidx) reliably drives dbAdjTree past the real TREESIZE bound during ordinary free/alloc paths; success does not depend on races or uncontrolled system state.\nPR:L - After the crafted filesystem is mounted, an unprivileged local user with access to it can trigger the vulnerable free path through normal file operations (unlink/truncate/write); scoring PR:H would understate this reachable local-user scenario.\nUI:N - Exploitation is completed by the attacker's own filesystem operations on the mounted image; no additional interactive victim action is required at trigger time.\nS:U - Impact is confined to the host kernel's discretionary authority (local privilege escalation / kernel memory corruption); it does not cross a VM, IOMMU, or other security boundary.\nC:H - The bug performs an out-of-bounds read of dmt_stree before writing, and kernel OOB memory corruption of this form can be leveraged for arbitrary information disclosure.\nI:H - dbAdjTree performs an out-of-bounds write into adjacent kernel memory within the dmap metapage, which is exploitable memory corruption capable of control-flow hijacking or arbitrary write primitives.\nA:H - The OOB access can crash the kernel (UBSAN/KASAN reports and panic_on_warn in reproducers; related dbAdjTree reports include slab OOB/UAF), causing full availability loss."
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}
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]
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}
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"version": "0",
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},
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},
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"status": "unaffected",
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},
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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": "6.7.4",
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"lessThanOrEqual": "6.7.*",
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"status": "unaffected",
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{
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"cpeApplicability": [
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