CVE-2024-46842

{"id": "CVE-2024-46842", "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": "2024-09-27T13:15:16.190", "references": [{"url": "https://git.kernel.org/stable/c/bba47fe3b038cca3d3ebd799665ce69d6d273b58", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ede596b1434b57c0b3fd5c02b326efe5c54f6e48", "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\nscsi: lpfc: Handle mailbox timeouts in lpfc_get_sfp_info\n\nThe MBX_TIMEOUT return code is not handled in lpfc_get_sfp_info and the\nroutine unconditionally frees submitted mailbox commands regardless of\nreturn status. The issue is that for MBX_TIMEOUT cases, when firmware\nreturns SFP information at a later time, that same mailbox memory region\nreferences previously freed memory in its cmpl routine.\n\nFix by adding checks for the MBX_TIMEOUT return code. During mailbox\nresource cleanup, check the mbox flag to make sure that the wait did not\ntimeout. If the MBOX_WAKE flag is not set, then do not free the resources\nbecause it will be freed when firmware completes the mailbox at a later\ntime in its cmpl routine.\n\nAlso, increase the timeout from 30 to 60 seconds to accommodate boot\nscripts requiring longer timeouts."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: lpfc: Controlar los tiempos de espera del buz\u00f3n en lpfc_get_sfp_info El c\u00f3digo de retorno MBX_TIMEOUT no se maneja en lpfc_get_sfp_info y la rutina libera incondicionalmente los comandos de buz\u00f3n enviados independientemente del estado de retorno. El problema es que para los casos de MBX_TIMEOUT, cuando el firmware devuelve informaci\u00f3n SFP en un momento posterior, esa misma regi\u00f3n de memoria del buz\u00f3n hace referencia a la memoria liberada previamente en su rutina cmpl. Se soluciona agregando comprobaciones para el c\u00f3digo de retorno MBX_TIMEOUT. Durante la limpieza de recursos del buz\u00f3n, verifique el indicador mbox para asegurarse de que la espera no haya expirado. Si el indicador MBOX_WAKE no est\u00e1 configurado, no libere los recursos porque se liberar\u00e1n cuando el firmware complete el buz\u00f3n en un momento posterior en su rutina cmpl. Adem\u00e1s, aumente el tiempo de espera de 30 a 60 segundos para dar cabida a los scripts de arranque que requieren tiempos de espera m\u00e1s largos."}], "lastModified": "2024-10-08T18:22:24.997", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "75C6119D-9E8D-431D-813F-FE84579072CB", "versionEndExcluding": "6.10.10"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}