{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-38623", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-06-18T19:36:34.945Z", "datePublished": "2024-06-21T10:18:16.291Z", "dateUpdated": "2026-08-05T11:33:14.587Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:33:14.587Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Use variable length array instead of fixed size\n\nShould fix smatch warning:\n\tntfs_set_label() error: __builtin_memcpy() 'uni->name' too small (20 vs 256)" } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The affected code is the ntfs3 local filesystem name/label handling, reached through ordinary VFS syscalls (open/creat/link/rename/lookup) on a mounted volume or a write to /proc/fs/ntfs3//label. No network protocol handling is involved.\nAC:L - Triggering is fully deterministic — the attacker simply supplies a name or label longer than 10 UTF-16 units, and the copy length is directly attacker-controlled. There is no race, no memory-layout dependency, and no condition outside the attacker's control.\nPR:L - While the ntfs_set_label() path is root-gated, the identical mis-sized cpu_str accesses in fill_name_de(), ntfs_lookup(), ntfs_d_hash() and ntfs_d_compare() are reached by any unprivileged user creating, renaming, linking or merely looking up a long file name on an already-mounted ntfs3 volume.\nUI:N - No victim action is required once an ntfs3 volume is mounted, which is the normal state on desktops, kiosks, Android and media devices with USB/NTFS storage; the attacker acts entirely on their own.\nS:U - The corruption stays within kernel memory under the same security authority; there is no VM, IOMMU or sandbox boundary crossed.\nC:H - Up to 256 bytes (label path) and 510 bytes (name path) are read out of a 20-byte-declared array, an out-of-bounds read far beyond a few bounded bytes that can disclose adjacent kernel heap contents into on-disk name/label attributes readable by the attacker.\nI:H - The same paths write up to 510 bytes through the 20-byte-declared name member with attacker-controlled length and content, an out-of-bounds write that is the classic primitive for adjacent-object corruption and control-flow hijack.\nA:H - Out-of-declared-bounds access of this size corrupts or over-reads adjacent kernel heap state and trips CONFIG_FORTIFY_SOURCE field-spanning detection, resulting in kernel warnings, oops or panic (fatal with panic_on_warn)." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/ntfs3/ntfs.h" ], "versions": [ { "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e", "lessThan": "a2de301d90b782ac5d7a5fe32995caaee9ab3a0f", "status": "affected", "versionType": "git" }, { "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e", "lessThan": "3839a9b19a4b70eff6b6ad70446f639f7fd5a3d7", "status": "affected", "versionType": "git" }, { "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e", "lessThan": "1fe1c9dc21ee52920629d2d9b9bd84358931a8d1", "status": "affected", "versionType": "git" }, { "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e", "lessThan": "cceef44b34819c24bb6ed70dce5b524bd3e368d1", "status": "affected", "versionType": "git" }, { "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e", "lessThan": "1997cdc3e727526aa5d84b32f7cbb3f56459b7ef", "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/ntfs.h" ], "versions": [ { "version": "5.15", "status": "affected" }, { "version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.161", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.93", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.33", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9.4", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.10", "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": "5.15.161" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.1.93" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.6.33" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.9.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.10" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/a2de301d90b782ac5d7a5fe32995caaee9ab3a0f" }, { "url": "https://git.kernel.org/stable/c/3839a9b19a4b70eff6b6ad70446f639f7fd5a3d7" }, { "url": "https://git.kernel.org/stable/c/1fe1c9dc21ee52920629d2d9b9bd84358931a8d1" }, { "url": "https://git.kernel.org/stable/c/cceef44b34819c24bb6ed70dce5b524bd3e368d1" }, { "url": "https://git.kernel.org/stable/c/1997cdc3e727526aa5d84b32f7cbb3f56459b7ef" } ], "title": "fs/ntfs3: Use variable length array instead of fixed size", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-129", "lang": "en", "description": "CWE-129 Improper Validation of Array Index" } ] } ], "affected": [ { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "4534a70b7056", "status": "affected", "lessThan": "a2de301d90b7", "versionType": "custom" } ] }, { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "4534a70b7056", "status": "affected", "lessThan": "3839a9b19a4b", "versionType": "custom" } ] }, { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "4534a70b7056", "status": "affected", "lessThan": "1fe1c9dc21ee", "versionType": "custom" } ] }, { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "4534a70b7056", "status": "affected", "lessThan": "cceef44b3481", "versionType": "custom" } ] }, { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "4534a70b7056", "status": "affected", "lessThan": "1997cdc3e727", "versionType": "custom" } ] }, { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "5.15", "status": "affected" } ] }, { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "0", "status": "unaffected", "lessThan": "5.15", "versionType": "custom" } ] }, { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "5.15.161", "status": "unaffected", "lessThanOrEqual": "5.16", "versionType": "custom" } ] }, { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "6.1.93", "status": "unaffected", "lessThanOrEqual": "6.2", "versionType": "custom" } ] }, { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "6.6.33", "status": "unaffected", "lessThanOrEqual": "6.7", "versionType": "custom" } ] }, { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "6.9.4", "status": "unaffected", "lessThanOrEqual": "6.10", "versionType": "custom" } ] }, { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "6.10-rc1", "status": "unaffected" } ] } ], "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2024-06-25T14:54:31.559522Z", "id": "CVE-2024-38623", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-25T15:08:32.014Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T04:12:25.994Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/a2de301d90b782ac5d7a5fe32995caaee9ab3a0f", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/3839a9b19a4b70eff6b6ad70446f639f7fd5a3d7", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/1fe1c9dc21ee52920629d2d9b9bd84358931a8d1", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/cceef44b34819c24bb6ed70dce5b524bd3e368d1", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/1997cdc3e727526aa5d84b32f7cbb3f56459b7ef", "tags": [ "x_transferred" ] } ] } ] } }