{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-50248", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T19:36:19.978Z", "datePublished": "2024-11-09T10:14:56.965Z", "dateUpdated": "2026-08-05T11:42:45.435Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:42:45.435Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nntfs3: Add bounds checking to mi_enum_attr()\n\nAdded bounds checking to make sure that every attr don't stray beyond\nvalid memory region." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "baseScore": 7.1, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The vulnerability is triggered by parsing attacker-crafted MFT records from an NTFS volume, which requires the image to be mounted on the local system (loop device, USB stick, or automounted removable media). There is no network-facing path into `mi_enum_attr()`.\nAC:L - The attacker fully controls every field involved (`rec->attr_off`, `rec->used`, `rec->total`, `attr->size`) and the overread is deterministic on the first attribute enumeration — no race, timing window, or uncontrolled memory-layout condition is involved.\nPR:L - An unprivileged local user can get an arbitrary NTFS image mounted on common desktop/kiosk configurations via udisks2/systemd automount of removable media, or via `user`-option/loop mounts; no root in the initial namespace is needed for the realistic scenario.\nUI:N - In the highest-impact scenario the attacker supplies and mounts the malicious volume themselves (inserting media that is auto-mounted, or loop-mounting their own image), so no action by a separate victim is required.\nS:U - The out-of-bounds access stays within the kernel's own memory and security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `attr->size` is dereferenced at an attacker-influenced offset beyond the `kmalloc()`ed MFT record buffer, reading adjacent kernel heap contents; the commit's own framing is that attributes could \"stray beyond valid memory region\", so the read is not reliably bounded.\nI:N - The defect is purely a read of `attr->size`; the surviving `off + asize > used` boundary test still constrains any attribute handed back to callers, so no out-of-bounds write or control-flow corruption primitive arises.\nA:H - The out-of-bounds dereference can hit an unmapped page or trip KASAN/hardened-allocator checks, producing a kernel oops or panic and denying service to the whole system." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/ntfs3/record.c" ], "versions": [ { "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e", "lessThan": "386613a44b858304a88529ade2ccc1e079a5fc56", "status": "affected", "versionType": "git" }, { "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e", "lessThan": "22cdf3be7d34f61a91b9e2966fec3a29f3871398", "status": "affected", "versionType": "git" }, { "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e", "lessThan": "809f9b419c75f8042c58434d2bfe849140643e9d", "status": "affected", "versionType": "git" }, { "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e", "lessThan": "556bdf27c2dd5c74a9caacbe524b943a6cd42d99", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/ntfs3/record.c" ], "versions": [ { "version": "5.15", "status": "affected" }, { "version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.120", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.60", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11.7", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.1.120" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.6.60" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.11.7" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.12" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/386613a44b858304a88529ade2ccc1e079a5fc56" }, { "url": "https://git.kernel.org/stable/c/22cdf3be7d34f61a91b9e2966fec3a29f3871398" }, { "url": "https://git.kernel.org/stable/c/809f9b419c75f8042c58434d2bfe849140643e9d" }, { "url": "https://git.kernel.org/stable/c/556bdf27c2dd5c74a9caacbe524b943a6cd42d99" } ], "title": "ntfs3: Add bounds checking to mi_enum_attr()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T20:44:37.543Z" } } ] } }