CVE-2021-47186

{"id": "CVE-2021-47186", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2024-04-10T19:15:47.430", "references": [{"url": "https://git.kernel.org/stable/c/3e6db079751afd527bf3db32314ae938dc571916", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9404c4145542c23019a80ab1bb2ecf73cd057b10", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a7d91625863d4ffed63b993b5e6dc1298b6430c9", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-690"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: check for null after calling kmemdup\n\nkmemdup can return a null pointer so need to check for it, otherwise\nthe null key will be dereferenced later in tipc_crypto_key_xmit as\ncan be seen in the trace [1].\n\n\n[1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58"}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: tipc: verifique si hay valores nulos despu\u00e9s de llamar a kmemdup kmemdup puede devolver un puntero nulo, por lo que es necesario verificarlo; de lo contrario, se eliminar\u00e1 la referencia a la clave nula m\u00e1s adelante en tipc_crypto_key_xmit, como se puede ver en el seguimiento. [1]. [1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58"}], "lastModified": "2024-07-08T14:16:15.150", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}