{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-52640", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-03-06T09:52:12.093Z", "datePublished": "2024-04-03T17:00:10.216Z", "dateUpdated": "2026-08-05T09:10:51.122Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:10:51.122Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Fix oob in ntfs_listxattr\n\nThe length of name cannot exceed the space occupied by ea." } ], "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 vulnerable path is ntfs3 on-disk EA parsing reached via the local listxattr syscall on a mounted NTFS volume (USB/loop/NBD image); no network protocol handler is involved.\nAC:L - A crafted NTFS image with an EA whose name_len exceeds ea_size deterministically triggers the slab OOB read on listxattr with no race or other condition outside the attacker's control.\nPR:L - vfs_listxattr does not require MAY_READ—only path reachability and LSM listxattr hooks—so an unprivileged local user who can reach a file on a mounted NTFS volume can invoke the vulnerable path.\nUI:N - Once an NTFS volume is mounted (common for removable/dual-boot/shared storage, including automount), the attacker triggers the bug solely by calling listxattr with no further victim interaction.\nS:U - Impact is confined to the local kernel's memory and availability authority; this is standard kernel memory-safety impact with no VM, IOMMU, or sandbox boundary crossed.\nC:H - The slab OOB read in ntfs_list_ea memcpy's attacker-influenced lengths of adjacent slab memory into the listxattr buffer that is copied to userspace, enabling kernel heap disclosure.\nI:N - The defect is an out-of-bounds read only; memcpy destinations are the legitimate list buffer under a size check, with no OOB write or other kernel integrity corruption primitive.\nA:H - The OOB access causes KASAN slab-out-of-bounds faults and can oops/panic the kernel when invalid EA iteration touches unmapped or poisoned slab memory, enabling denial of service." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/ntfs3/xattr.c" ], "versions": [ { "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e", "lessThan": "a585faf0591548fe0920641950ebfa8a6eefe1cd", "status": "affected", "versionType": "git" }, { "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e", "lessThan": "6ed6cdbe88334ca3430c5aee7754dc4597498dfb", "status": "affected", "versionType": "git" }, { "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e", "lessThan": "52fff5799e3d1b5803ecd2f5f19c13c65f4f7b23", "status": "affected", "versionType": "git" }, { "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e", "lessThan": "0830c5cf19bdec50d0ede4755ddc463663deb21c", "status": "affected", "versionType": "git" }, { "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e", "lessThan": "731ab1f9828800df871c5a7ab9ffe965317d3f15", "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/xattr.c" ], "versions": [ { "version": "5.15", "status": "affected" }, { "version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.150", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.80", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.19", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.7.7", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.8", "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": "5.15.150" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.1.80" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.6.19" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.7.7" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.8" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/a585faf0591548fe0920641950ebfa8a6eefe1cd" }, { "url": "https://git.kernel.org/stable/c/6ed6cdbe88334ca3430c5aee7754dc4597498dfb" }, { "url": "https://git.kernel.org/stable/c/52fff5799e3d1b5803ecd2f5f19c13c65f4f7b23" }, { "url": "https://git.kernel.org/stable/c/0830c5cf19bdec50d0ede4755ddc463663deb21c" }, { "url": "https://git.kernel.org/stable/c/731ab1f9828800df871c5a7ab9ffe965317d3f15" } ], "title": "fs/ntfs3: Fix oob in ntfs_listxattr", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:03:21.274Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/a585faf0591548fe0920641950ebfa8a6eefe1cd", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/6ed6cdbe88334ca3430c5aee7754dc4597498dfb", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/52fff5799e3d1b5803ecd2f5f19c13c65f4f7b23", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/0830c5cf19bdec50d0ede4755ddc463663deb21c", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/731ab1f9828800df871c5a7ab9ffe965317d3f15", "tags": [ "x_transferred" ] } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2023-52640", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T15:52:10.390866Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:32:51.801Z" } } ] } }