CVE-2021-47301

{"id": "CVE-2021-47301", "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": "2024-05-21T15:15:17.890", "references": [{"url": "https://git.kernel.org/stable/c/7b292608db23ccbbfbfa50cdb155d01725d7a52e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/88e0720133d42d34851c8721cf5f289a50a8710f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8e24c12f2ff6d32fd9f057382f08e748ec97194c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d3ccb18ed5ac3283c7b31ecc685b499e580d5492", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d7367f781e5a9ca5df9082b15b272b55e76931f8", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f153664d8e70c11d0371341613651e1130e20240", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7b292608db23ccbbfbfa50cdb155d01725d7a52e", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/88e0720133d42d34851c8721cf5f289a50a8710f", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/8e24c12f2ff6d32fd9f057382f08e748ec97194c", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/d3ccb18ed5ac3283c7b31ecc685b499e580d5492", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/d7367f781e5a9ca5df9082b15b272b55e76931f8", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/f153664d8e70c11d0371341613651e1130e20240", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "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\nigb: Fix use-after-free error during reset\n\nCleans the next descriptor to watch (next_to_watch) when cleaning the\nTX ring.\n\nFailure to do so can cause invalid memory accesses. If igb_poll() runs\nwhile the controller is reset this can lead to the driver try to free\na skb that was already freed.\n\n(The crash is harder to reproduce with the igb driver, but the same\npotential problem exists as the code is identical to igc)"}, {"lang": "es", "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: igb: corrige el error de use after free durante el reinicio. Limpia el siguiente descriptor a observar (next_to_watch) al limpiar el anillo TX. De lo contrario, se pueden producir accesos a la memoria no v\u00e1lidos. Si igb_poll() se ejecuta mientras se reinicia el controlador, esto puede hacer que el controlador intente liberar un skb que ya estaba liberado. (El fallo es m\u00e1s dif\u00edcil de reproducir con el controlador igb, pero existe el mismo problema potencial ya que el c\u00f3digo es id\u00e9ntico al de igc)"}], "lastModified": "2024-12-26T20:44:31.930", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2277B7F3-F386-49FF-AEB1-8ABEA81BE952", "versionEndExcluding": "4.14.241", "versionStartIncluding": "4.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D1C5B0E1-06E7-4615-AA17-02585202D86E", "versionEndExcluding": "4.19.199", "versionStartIncluding": "4.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E1FCD98C-8886-4844-B7AF-C42731DF9465", "versionEndExcluding": "5.4.136", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1BD5A2EE-859F-40FC-BDAC-167AAE37C870", "versionEndExcluding": "5.10.54", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "512C22FC-1524-4E6F-9E62-4F4B7B6E0576", "versionEndExcluding": "5.13.6", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.14:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "71268287-21A8-4488-AA4F-23C473153131"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}