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This can be reproduced e.g. by running:\n\n kcapi-rng -b 67 >/dev/null\n\nThere are many ways to fix this without adding back the 'break', but\nthey all seem more awkward than simply adding it back, so do just that.\n\nTested on a machine with Qualcomm Amberwing processor."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: crypto: qcom-rng: corrige el bucle infinito en solicitudes que no sean m\u00faltiples de WORD_SZ. El commit a la que se hace referencia en la etiqueta Fixes elimin\u00f3 la 'ruptura' de la rama else en qcom_rng_read(), lo que provoc\u00f3 una bucle infinito siempre que 'max' no sea un m\u00faltiplo de WORD_SZ. Esto se puede reproducir, por ejemplo, ejecutando: kcapi-rng -b 67 >/dev/null Hay muchas formas de solucionar este problema sin volver a agregar el 'descanso', pero todas parecen m\u00e1s inc\u00f3modas que simplemente volver a agregarlo, as\u00ed que hazlo. Probado en una m\u00e1quina con procesador Qualcomm Amberwing."}], "id": "CVE-2022-48630", "lastModified": "2025-02-03T14:09:55.317", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-03-05T12:15:45.780", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/05d4d17475d8d094c519bb51658bc47899c175e3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/16287397ec5c08aa58db6acf7dbc55470d78087d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/233a3cc60e7a8fe0be8cf9934ae7b67ba25a866c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/71a89789552b7faf3ef27969b9bc783fa0df3550"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8a06f25f5941c145773204f2f7abef95b4ffb8ce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8be06f62b426801dba43ddf8893952a0e62ab6ae"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/05d4d17475d8d094c519bb51658bc47899c175e3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/16287397ec5c08aa58db6acf7dbc55470d78087d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/233a3cc60e7a8fe0be8cf9934ae7b67ba25a866c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/71a89789552b7faf3ef27969b9bc783fa0df3550"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8a06f25f5941c145773204f2f7abef95b4ffb8ce"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8be06f62b426801dba43ddf8893952a0e62ab6ae"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-835"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: crypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ", "id": "2267959", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2267959"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-835", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ncrypto: qcom-rng - fix infinite loop on requests not multiple of WORD_SZ\nThe commit referenced in the Fixes tag removed the 'break' from the else\nbranch in qcom_rng_read(), causing an infinite loop whenever 'max' is\nnot a multiple of WORD_SZ. This can be reproduced e.g. by running:\nkcapi-rng -b 67 >/dev/null\nThere are many ways to fix this without adding back the 'break', but\nthey all seem more awkward than simply adding it back, so do just that.\nTested on a machine with Qualcomm Amberwing processor."], "name": "CVE-2022-48630", "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": "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-03-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48630\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48630\nhttps://lore.kernel.org/linux-cve-announce/2024030516-CVE-2022-48630-ae00@gregkh/T/#u"], "threat_severity": "Low"}

{}