CVE-2021-47198

{"id": "CVE-2021-47198", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "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": "2024-04-10T19:15:47.990", "references": [{"url": "https://git.kernel.org/stable/c/79b20beccea3a3938a8500acef4e6b9d7c66142f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/dbebf865b3239595c1d4dba063b122862583b52a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/79b20beccea3a3938a8500acef4e6b9d7c66142f", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/dbebf865b3239595c1d4dba063b122862583b52a", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: lpfc: Fix use-after-free in lpfc_unreg_rpi() routine\n\nAn error is detected with the following report when unloading the driver:\n \"KASAN: use-after-free in lpfc_unreg_rpi+0x1b1b\"\n\nThe NLP_REG_LOGIN_SEND nlp_flag is set in lpfc_reg_fab_ctrl_node(), but the\nflag is not cleared upon completion of the login.\n\nThis allows a second call to lpfc_unreg_rpi() to proceed with nlp_rpi set\nto LPFC_RPI_ALLOW_ERROR. This results in a use after free access when used\nas an rpi_ids array index.\n\nFix by clearing the NLP_REG_LOGIN_SEND nlp_flag in\nlpfc_mbx_cmpl_fc_reg_login()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: lpfc: Fix use-after-free en la rutina lpfc_unreg_rpi() Se detecta un error con el siguiente reporte al descargar el driver: \"KASAN: use-after-free en lpfc_unreg_rpi +0x1b1b\" El NLP_REG_LOGIN_SEND nlp_flag est\u00e1 configurado en lpfc_reg_fab_ctrl_node(), pero el indicador no se borra al finalizar el inicio de sesi\u00f3n. Esto permite una segunda llamada a lpfc_unreg_rpi() para continuar con nlp_rpi configurado en LPFC_RPI_ALLOW_ERROR. Esto da como resultado un acceso de use after free cuando se usa como \u00edndice de matriz rpi_ids. Para solucionarlo, borre NLP_REG_LOGIN_SEND nlp_flag en lpfc_mbx_cmpl_fc_reg_login()."}], "lastModified": "2025-01-10T19:05:47.023", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "53E796CA-D377-4F91-8FF4-33D9CAC9A4B8", "versionEndExcluding": "5.15.5", "versionStartIncluding": "5.14"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}