CVE-2024-46688

{"id": "CVE-2024-46688", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "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": "2024-09-13T06:15:13.547", "references": [{"url": "https://git.kernel.org/stable/c/0005e01e1e875c5e27130c5e2ed0189749d1e08a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/49c0e081998008cde0c872c0ff9affa1ece4b878", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix out-of-bound access when z_erofs_gbuf_growsize() partially fails\n\nIf z_erofs_gbuf_growsize() partially fails on a global buffer due to\nmemory allocation failure or fault injection (as reported by syzbot [1]),\nnew pages need to be freed by comparing to the existing pages to avoid\nmemory leaks.\n\nHowever, the old gbuf->pages[] array may not be large enough, which can\nlead to null-ptr-deref or out-of-bound access.\n\nFix this by checking against gbuf->nrpages in advance.\n\n[1] https://lore.kernel.org/r/[email protected]"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: erofs: se corrige el acceso fuera de los l\u00edmites cuando z_erofs_gbuf_growsize() falla parcialmente Si z_erofs_gbuf_growsize() falla parcialmente en un b\u00fafer global debido a un error en la asignaci\u00f3n de memoria o inyecci\u00f3n de fallas (como lo inform\u00f3 syzbot [1]), se deben liberar nuevas p\u00e1ginas compar\u00e1ndolas con las p\u00e1ginas existentes para evitar fugas de memoria. Sin embargo, la matriz gbuf->pages[] anterior puede no ser lo suficientemente grande, lo que puede provocar un acceso fuera de los l\u00edmites o una desreferencia de ptr nula. Corrija esto verificando con gbuf->nrpages de antemano. [1] https://lore.kernel.org/r/[email protected]"}], "lastModified": "2024-09-19T18:01:43.037", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2CE718D7-41ED-4D4A-AED5-326C3D4383FB", "versionEndExcluding": "6.10.8", "versionStartIncluding": "6.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8B3CE743-2126-47A3-8B7C-822B502CF119"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4DEB27E7-30AA-45CC-8934-B89263EF3551"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E0005AEF-856E-47EB-BFE4-90C46899394D"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "39889A68-6D34-47A6-82FC-CD0BF23D6754"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}