CVE-2021-47101

{"id": "CVE-2021-47101", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 1.8}]}, "published": "2024-03-04T18:15:08.450", "references": [{"url": "https://git.kernel.org/stable/c/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d259f621c85949f30cc578cac813b82bb5169f56", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8035b1a2a37a29d8c717ef84fca8fe7278bc9f03", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/d259f621c85949f30cc578cac813b82bb5169f56", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-908"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nasix: fix uninit-value in asix_mdio_read()\n\nasix_read_cmd() may read less than sizeof(smsr) bytes and in this case\nsmsr will be uninitialized.\n\nFail log:\nBUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]\nBUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497\nBUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497\n asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]\n asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497\n asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: asix: corrige el valor uninit en asix_mdio_read() asix_read_cmd() puede leer menos que sizeof(smsr) bytes y en este caso smsr no estar\u00e1 inicializado. Registro de errores: ERROR: KMSAN: valor uninit en asix_check_host_enable drivers/net/usb/asix_common.c:82 [en l\u00ednea] ERROR: KMSAN: valor uninit en asix_check_host_enable drivers/net/usb/asix_common.c:82 controladores [en l\u00ednea] /net/usb/asix_common.c:497 ERROR: KMSAN: valor uninit en asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497 asix_check_host_enable drivers/net/ usb/asix_common.c:82 [en l\u00ednea] controladores asix_check_host_enable/net/usb/asix_common.c:82 [en l\u00ednea] controladores/net/usb/asix_common.c:497 controladores asix_mdio_read+0x3c1/0xb00/net/usb/asix_common.c :497 controladores/net/usb/asix_common.c:497"}], "lastModified": "2025-02-03T14:02:18.480", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9C86D33C-E1B6-41AB-BEF8-29F8D745A138", "versionEndExcluding": "5.15.12", "versionStartIncluding": "4.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "357AA433-37E8-4323-BFB2-3038D6E4B414"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A73429BA-C2D9-4D0C-A75F-06A1CA8B3983"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F621B5E3-E99D-49E7-90B9-EC3B77C95383"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F7BFDCAA-1650-49AA-8462-407DD593F94F"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6EC9882F-866D-4ACB-8FBC-213D8D8436C8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8A0915FE-A4AA-4C94-B783-CF29D81E7E54"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}