{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-46774", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-09-11T15:12:18.275Z", "datePublished": "2024-09-18T07:12:31.782Z", "dateUpdated": "2024-12-19T09:22:52.489Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-12-19T09:22:52.489Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas()\n\nSmatch warns:\n\n arch/powerpc/kernel/rtas.c:1932 __do_sys_rtas() warn: potential\n spectre issue 'args.args' [r] (local cap)\n\nThe 'nargs' and 'nret' locals come directly from a user-supplied\nbuffer and are used as indexes into a small stack-based array and as\ninputs to copy_to_user() after they are subject to bounds checks.\n\nUse array_index_nospec() after the bounds checks to clamp these values\nfor speculative execution."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/powerpc/kernel/rtas.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "68d8156480940b79227d58865ec5d2947b9384a8", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "0974d03eb479384466d828d65637814bee6b26d7", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/powerpc/kernel/rtas.c"], "versions": [{"version": "6.10.10", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/68d8156480940b79227d58865ec5d2947b9384a8"}, {"url": "https://git.kernel.org/stable/c/0974d03eb479384466d828d65637814bee6b26d7"}], "title": "powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas()", "x_generator": {"engine": "bippy-5f407fcff5a0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-09-29T14:39:52.775047Z", "id": "CVE-2024-46774", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-29T14:40:07.179Z"}}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "75C6119D-9E8D-431D-813F-FE84579072CB", "versionEndExcluding": "6.10.10", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas()\n\nSmatch warns:\n\n arch/powerpc/kernel/rtas.c:1932 __do_sys_rtas() warn: potential\n spectre issue 'args.args' [r] (local cap)\n\nThe 'nargs' and 'nret' locals come directly from a user-supplied\nbuffer and are used as indexes into a small stack-based array and as\ninputs to copy_to_user() after they are subject to bounds checks.\n\nUse array_index_nospec() after the bounds checks to clamp these values\nfor speculative execution."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: powerpc/rtas: Impedir la construcci\u00f3n del gadget Spectre v1 en sys_rtas() Smatch advierte: arch/powerpc/kernel/rtas.c:1932 __do_sys_rtas() advierte: posible problema de Spectre 'args.args' [r] (cap local) Las variables locales 'nargs' y 'nret' provienen directamente de un b\u00fafer proporcionado por el usuario y se usan como \u00edndices en una peque\u00f1a matriz basada en pila y como entradas para copy_to_user() despu\u00e9s de que est\u00e9n sujetas a verificaciones de l\u00edmites. Utilice array_index_nospec() despu\u00e9s de las verificaciones de l\u00edmites para fijar estos valores para la ejecuci\u00f3n especulativa."}], "id": "CVE-2024-46774", "lastModified": "2024-11-20T18:19:00.327", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "[email protected]", "type": "Primary"}]}, "published": "2024-09-18T08:15:05.180", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0974d03eb479384466d828d65637814bee6b26d7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/68d8156480940b79227d58865ec5d2947b9384a8"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "[email protected]", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas()", "id": "2313122", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2313122"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-121", "details": ["In the Linux kernel, the following vulnerability has been resolved:\npowerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas()\nSmatch warns:\narch/powerpc/kernel/rtas.c:1932 __do_sys_rtas() warn: potential\nspectre issue 'args.args' [r] (local cap)\nThe 'nargs' and 'nret' locals come directly from a user-supplied\nbuffer and are used as indexes into a small stack-based array and as\ninputs to copy_to_user() after they are subject to bounds checks.\nUse array_index_nospec() after the bounds checks to clamp these values\nfor speculative execution."], "name": "CVE-2024-46774", "package_state": [{"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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-09-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-46774\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-46774\nhttps://lore.kernel.org/linux-cve-announce/2024091847-CVE-2024-46774-48d9@gregkh/T"], "threat_severity": "Low"}