{ "id": "CVE-2021-47207", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "published": "2024-04-10T19:15:48.400", "lastModified": "2025-01-13T20:42:37.580", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: gus: fix null pointer dereference on pointer block\n\nThe pointer block return from snd_gf1_dma_next_block could be\nnull, so there is a potential null pointer dereference issue.\nFix this by adding a null check before dereference." }, { "lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ALSA: gus: corrige la desreferencia de puntero nulo en el bloque de puntero El bloque de puntero devuelto por snd_gf1_dma_next_block podr\u00eda ser nulo, por lo que existe un posible problema de desreferencia de puntero nulo. Solucione esto agregando una verificaci\u00f3n nula antes de la desreferencia." } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH" }, "exploitabilityScore": 1.8, "impactScore": 3.6 } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-476" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.4.293", "matchCriteriaId": "83024F84-4857-4CAF-957E-C14804BAC4AF" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "4.9.291", "matchCriteriaId": "8B1EE39E-FE30-4B7D-A26F-631135BCBB3F" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "4.14.256", "matchCriteriaId": "FCEB92FF-21BF-4F75-ACA1-6AE1D51A79FC" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "4.19.218", "matchCriteriaId": "4F85F433-5DEA-47D3-B07E-3B1AC474D6E0" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "5.4.162", "matchCriteriaId": "51A152D8-D5CE-47BD-9041-DEE164DCE99D" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.10.82", "matchCriteriaId": "AE501832-500C-4EF1-9489-5C13674F619D" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "5.15.5", "matchCriteriaId": "2128A085-4C0C-4C1E-9E9C-0DD868E2170F" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/16721797dcef2c7c030ffe73a07f39a65f9323c3", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/1ac6cd87d8ddd36c43620f82c4d65b058f725f0f", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/3e28e083dcdf03a18a083f8a47b6bb6b1604b5be", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/542fa721594a02d2aee0370a764d306ef48d030c", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/a0d21bb3279476c777434c40d969ea88ca64f9aa", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/ab4c1ebc40f699f48346f634d7b72b9c5193f315", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/c6d2cefdd05c4810c416fb8d384b5c377bd977bc", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/cb09c760c201f82df83babc92a5ffea0a01807fc", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/16721797dcef2c7c030ffe73a07f39a65f9323c3", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/1ac6cd87d8ddd36c43620f82c4d65b058f725f0f", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/3e28e083dcdf03a18a083f8a47b6bb6b1604b5be", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/542fa721594a02d2aee0370a764d306ef48d030c", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/a0d21bb3279476c777434c40d969ea88ca64f9aa", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/ab4c1ebc40f699f48346f634d7b72b9c5193f315", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/c6d2cefdd05c4810c416fb8d384b5c377bd977bc", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] }, { "url": "https://git.kernel.org/stable/c/cb09c760c201f82df83babc92a5ffea0a01807fc", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] } ] }