CVE-2022-48854

{"id": "CVE-2022-48854", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2024-07-16T13:15:12.457", "references": [{"url": "https://git.kernel.org/stable/c/84c831803785c2c3bec5c28c0e8a0b72f6b41d4d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/bc0e610a6eb0d46e4123fafdbe5e6141d9fff3be", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: arc_emac: Fix use after free in arc_mdio_probe()\n\nIf bus->state is equal to MDIOBUS_ALLOCATED, mdiobus_free(bus) will free\nthe \"bus\". But bus->name is still used in the next line, which will lead\nto a use after free.\n\nWe can fix it by putting the name in a local variable and make the\nbus->name point to the rodata section \"name\",then use the name in the\nerror message without referring to bus to avoid the uaf."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: arc_emac: corrige el use after free en arc_mdio_probe() Si bus->state es igual a MDIOBUS_ALLOCATED, mdiobus_free(bus) liberar\u00e1 el \"bus\". Pero bus->name todav\u00eda se usa en la siguiente l\u00ednea, lo que conducir\u00e1 a un uso posterior a free. Podemos solucionarlo poniendo el nombre en una variable local y haciendo que bus->nombre apunte a la secci\u00f3n \"nombre\" de rodata, luego use el nombre en el mensaje de error sin hacer referencia al bus para evitar el uaf."}], "lastModified": "2024-07-23T15:26:31.407", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "83FDEDF2-0E19-4879-91FD-171E66D1B335", "versionEndExcluding": "5.16.15", "versionStartIncluding": "5.16"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}