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To avoid this kernel oops, the test should be delay\n>= 0. As there is already delay < 0 test just before, the test could\nonly be size == 0."}, {"lang": "es", "value": "En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: net:phy: fix phy_get_internal_delay accediendo a un array vac\u00edo La funci\u00f3n phy_get_internal_delay podr\u00eda intentar acceder a un array vac\u00edo en el caso de que el driver est\u00e9 llamando a phy_get_internal_delay sin definir delay_values y rx-internal- delay-ps o tx-internal-delay-ps se define en 0 en el \u00e1rbol de dispositivos. Esto provocar\u00e1 que \"no se pueda manejar la desreferencia del puntero NULL del kernel en la direcci\u00f3n virtual 0\". Para evitar este problema del kernel, la prueba debe tener un retraso &gt;= 0. Como ya hay un retraso &lt; 0 en la prueba justo antes, la prueba solo podr\u00eda tener un tama\u00f1o == 0."}], "id": "CVE-2024-27047", "lastModified": "2024-12-23T19:14:13.317", "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": "2024-05-01T13:15:49.930", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0307cf443308ecc6be9b2ca312bb31bae5e5a7ad"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/06dd21045a7e8bc8701b0ebedcd9a30a6325878b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0e939a002c8a7d66e60bd0ea6b281fb39d713c1a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2a2ff709511617de9c6c072eeee82bcbbdfecaf8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4469c0c5b14a0919f5965c7ceac96b523eb57b79"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/589ec16174dd9378953b8232ae76fad0a96e1563"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c0691de7df1d51482a52cac93b7fe82fd9dd296b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0307cf443308ecc6be9b2ca312bb31bae5e5a7ad"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/06dd21045a7e8bc8701b0ebedcd9a30a6325878b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0e939a002c8a7d66e60bd0ea6b281fb39d713c1a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2a2ff709511617de9c6c072eeee82bcbbdfecaf8"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4469c0c5b14a0919f5965c7ceac96b523eb57b79"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/589ec16174dd9378953b8232ae76fad0a96e1563"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c0691de7df1d51482a52cac93b7fe82fd9dd296b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: phy: fix phy_get_internal_delay accessing an empty array", "id": "2278433", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2278433"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: phy: fix phy_get_internal_delay accessing an empty array\nThe phy_get_internal_delay function could try to access to an empty\narray in the case that the driver is calling phy_get_internal_delay\nwithout defining delay_values and rx-internal-delay-ps or\ntx-internal-delay-ps is defined to 0 in the device-tree.\nThis will lead to \"unable to handle kernel NULL pointer dereference at\nvirtual address 0\". To avoid this kernel oops, the test should be delay\n>= 0. As there is already delay < 0 test just before, the test could\nonly be size == 0.", "A vulnerability was found in the Linux kernel's net driver phy_device.c in the phy_get_internal_delay() function, where a lack of proper checks can cause a potential NULL pointer dereference to occur when the function attempts to access an empty array. The error occurs if the driver calls phy_get_internal_delay() without defining delay_values and rx-internal-delay-ps or tx-internal-delay-ps is set to 0 in the device-tree. This flaw can lead to system instability."], "name": "CVE-2024-27047", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "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": "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": "2024-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-27047\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-27047\nhttps://lore.kernel.org/linux-cve-announce/2024050114-CVE-2024-27047-8aad@gregkh/T"], "threat_severity": "Moderate"}