CVE-2024-47708

{"id": "CVE-2024-47708", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2024-10-21T12:15:07.313", "references": [{"url": "https://git.kernel.org/stable/c/157f29152b61ca41809dd7ead29f5733adeced19", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/182c6fed8c7f62cddce0126ec1fc0da2b700fb11", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetkit: Assign missing bpf_net_context\n\nDuring the introduction of struct bpf_net_context handling for\nXDP-redirect, the netkit driver has been missed, which also requires it\nbecause NETKIT_REDIRECT invokes skb_do_redirect() which is accessing the\nper-CPU variables. Otherwise we see the following crash:\n\n\tBUG: kernel NULL pointer dereference, address: 0000000000000038\n\tbpf_redirect()\n\tnetkit_xmit()\n\tdev_hard_start_xmit()\n\nSet the bpf_net_context before invoking netkit_xmit() program within the\nnetkit driver."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netkit: Asignar bpf_net_context faltante Durante la introducci\u00f3n del manejo de struct bpf_net_context para la redirecci\u00f3n XDP, se ha omitido el controlador netkit, que tambi\u00e9n lo requiere porque NETKIT_REDIRECT invoca skb_do_redirect() que accede a las variables por CPU. De lo contrario, vemos el siguiente fallo: ERROR: desreferencia de puntero NULL del kernel, direcci\u00f3n: 0000000000000038 bpf_redirect() netkit_xmit() dev_hard_start_xmit() Establezca bpf_net_context antes de invocar el programa netkit_xmit() dentro del controlador netkit."}], "lastModified": "2024-10-24T13:45:19.677", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AB755D26-97F4-43B6-8604-CD076811E181", "versionEndExcluding": "6.11.2", "versionStartIncluding": "6.11"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}