CVE-2024-54456

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2024-54456", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-27T02:16:34.098Z", "datePublished": "2025-02-27T02:18:08.143Z", "dateUpdated": "2026-08-05T11:44:49.902Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:44:49.902Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFS: Fix potential buffer overflowin nfs_sysfs_link_rpc_client()\n\nname is char[64] where the size of clnt->cl_program->name remains\nunknown. Invoking strcat() directly will also lead to potential buffer\noverflow. Change them to strscpy() and strncat() to fix potential\nissues."}], "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 vulnerable code is in the NFS *client* and is reached through local filesystem operations \u2014 a `mount -t nfs` or, without any privilege, ordinary path traversal that triggers `nfs_d_automount` on an already-mounted share. Although a malicious/compromised NFS server can drive the referral submount that reaches the function, the write itself is performed from local kernel-side data, so Local is the correct vector.\nAC:L - The code path is executed deterministically on every NFS mount and every crossmnt/referral submount, with no race, no timing window, and no memory-layout precondition outside the attacker's influence.\nPR:L - `nfs_clone_server()` \u2192 `nfs_sysfs_link_rpc_client()` is invoked from the `d_automount` dentry op on plain path traversal, so any unprivileged local user with access to an NFS mount (a very common configuration \u2014 autofs/NFS home directories) reaches the function with no capability check.\nUI:N - Automount-driven submounts happen automatically as a side effect of the attacker's own directory traversal; no separate victim action is required.\nS:U - Stack corruption in the NFS client stays within the kernel's own security authority \u2014 no VM, IOMMU, or sandbox boundary is crossed.\nC:H - An out-of-bounds write past a 64-byte kernel stack buffer overwrites adjacent frame state and, once leveraged into a control-flow or pointer primitive, permits disclosure of arbitrary kernel memory. Per kernel guidance, memory corruption that can be leveraged for info disclosure is scored High.\nI:H - Unbounded `strcpy`/`strcat` into a stack array is a classic out-of-bounds write reaching saved registers and the return address, which is directly exploitable for control-flow hijack and arbitrary kernel modification; OOB writes are scored High.\nA:H - Overwriting the saved return address or stack canary causes a stack-protector panic or an oops on return, crashing the kernel."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/nfs/sysfs.c"], "versions": [{"version": "e13b549319a684dd80c4cc25e9567a5c84007e32", "lessThan": "19b3ca651b4b473878c73539febe477905041442", "status": "affected", "versionType": "git"}, {"version": "e13b549319a684dd80c4cc25e9567a5c84007e32", "lessThan": "dd8830779b77f4d1206d28d02ad56a03fc0e78f7", "status": "affected", "versionType": "git"}, {"version": "e13b549319a684dd80c4cc25e9567a5c84007e32", "lessThan": "e8e0eb5601d4a6c74c336e3710afe3a0348c469d", "status": "affected", "versionType": "git"}, {"version": "e13b549319a684dd80c4cc25e9567a5c84007e32", "lessThan": "49fd4e34751e90e6df009b70cd0659dc839e7ca8", "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/nfs/sysfs.c"], "versions": [{"version": "6.5", "status": "affected"}, {"version": "0", "lessThan": "6.5", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.79", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.16", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13.4", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.14", "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": "6.5", "versionEndExcluding": "6.6.79"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.12.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.13.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.14"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/19b3ca651b4b473878c73539febe477905041442"}, {"url": "https://git.kernel.org/stable/c/dd8830779b77f4d1206d28d02ad56a03fc0e78f7"}, {"url": "https://git.kernel.org/stable/c/e8e0eb5601d4a6c74c336e3710afe3a0348c469d"}, {"url": "https://git.kernel.org/stable/c/49fd4e34751e90e6df009b70cd0659dc839e7ca8"}], "title": "NFS: Fix potential buffer overflowin nfs_sysfs_link_rpc_client()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/nfs/sysfs.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "19b3ca651b4b473878c73539febe477905041442", "status": "affected", "version": "e13b549319a684dd80c4cc25e9567a5c84007e32", "versionType": "git"}, {"lessThan": "dd8830779b77f4d1206d28d02ad56a03fc0e78f7", "status": "affected", "version": "e13b549319a684dd80c4cc25e9567a5c84007e32", "versionType": "git"}, {"lessThan": "e8e0eb5601d4a6c74c336e3710afe3a0348c469d", "status": "affected", "version": "e13b549319a684dd80c4cc25e9567a5c84007e32", "versionType": "git"}, {"lessThan": "49fd4e34751e90e6df009b70cd0659dc839e7ca8", "status": "affected", "version": "e13b549319a684dd80c4cc25e9567a5c84007e32", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/nfs/sysfs.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.5"}, {"lessThan": "6.5", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.79", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.16", "versionType": "semver"}, {"lessThanOrEqual": "6.13.*", "status": "unaffected", "version": "6.13.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.14", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A28256FB-47AC-4A7F-9947-2A08653FC35E", "versionEndExcluding": "6.6.79", "versionStartIncluding": "6.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "13C8DB18-FC60-425F-84E5-3EDDEC61B2FC", "versionEndExcluding": "6.12.16", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "2A2093ED-74A9-43F9-AC72-50030F374EA4", "versionEndExcluding": "6.13.4", "versionStartIncluding": "6.13", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFS: Fix potential buffer overflowin nfs_sysfs_link_rpc_client()\n\nname is char[64] where the size of clnt->cl_program->name remains\nunknown. Invoking strcat() directly will also lead to potential buffer\noverflow. Change them to strscpy() and strncat() to fix potential\nissues."}, {"lang": "es", "value": "En el n\u00facleo de Linux, se ha resuelto la siguiente vulnerabilidad: NFS: Se solucion\u00f3 un posible desbordamiento de b\u00fafer en nfs_sysfs_link_rpc_client() cuyo nombre es char[64], donde el tama\u00f1o de clnt->cl_program->name sigue siendo desconocido. Invocar strcat() directamente tambi\u00e9n provocar\u00e1 un posible desbordamiento de b\u00fafer. C\u00e1mbielos a strscpy() y strncat() para solucionar posibles problemas."}], "id": "CVE-2024-54456", "lastModified": "2026-08-04T11:22:08.187", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-02-27T03:15:10.667", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/19b3ca651b4b473878c73539febe477905041442"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/49fd4e34751e90e6df009b70cd0659dc839e7ca8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dd8830779b77f4d1206d28d02ad56a03fc0e78f7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e8e0eb5601d4a6c74c336e3710afe3a0348c469d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: NFS: Fix potential buffer overflowin nfs_sysfs_link_rpc_client()", "id": "2348541", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348541"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "status": "draft"}, "cwe": "CWE-120", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nNFS: Fix potential buffer overflowin nfs_sysfs_link_rpc_client()\nname is char[64] where the size of clnt->cl_program->name remains\nunknown. Invoking strcat() directly will also lead to potential buffer\noverflow. Change them to strscpy() and strncat() to fix potential\nissues."], "name": "CVE-2024-54456", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-54456\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-54456\nhttps://lore.kernel.org/linux-cve-announce/2025022602-CVE-2024-54456-e8a9@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-12T22:45:14.278335+00:00", "updated": "2025-07-12T22:45:14.278383+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}