CVE-2023-52913

{"id": "CVE-2023-52913", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "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": "2024-08-21T07:15:07.087", "references": [{"url": "https://git.kernel.org/stable/c/ae278887193110dfeb857ea63e243a3851fbb0bc", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/afce71ff6daa9c0f852df0727fe32c6fb107f0fa", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b696c627b3f56e173f7f70b8487d66da8ff22506", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "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\ndrm/i915: Fix potential context UAFs\n\ngem_context_register() makes the context visible to userspace, and which\npoint a separate thread can trigger the I915_GEM_CONTEXT_DESTROY ioctl.\nSo we need to ensure that nothing uses the ctx ptr after this. And we\nneed to ensure that adding the ctx to the xarray is the *last* thing\nthat gem_context_register() does with the ctx pointer.\n\n[tursulin: Stable and fixes tags add/tidy.]\n(cherry picked from commit bed4b455cf5374e68879be56971c1da563bcd90c)"}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: drm/i915: corrige posibles UAF de contexto gem_context_register() hace que el contexto sea visible para el espacio de usuario, y en qu\u00e9 punto un hilo separado puede activar el ioctl I915_GEM_CONTEXT_DESTROY. Por lo tanto, debemos asegurarnos de que nada use ctx ptr despu\u00e9s de esto. Y debemos asegurarnos de que agregar ctx al xarray sea lo *\u00faltimo* que hace gem_context_register() con el puntero ctx. [tursulin: etiquetas estables y corregidas agregadas/ordenadas.] (seleccionado de el commit bed4b455cf5374e68879be56971c1da563bcd90c)"}], "lastModified": "2024-11-08T16:15:18.787", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "06BCA914-E4BD-46C7-A8F5-74061C8BC138", "versionEndExcluding": "5.9", "versionStartIncluding": "5.8.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7349455C-BBB3-4263-B0EA-BC54BA76B4C7", "versionEndExcluding": "6.1.7", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FF501633-2F44-4913-A8EE-B021929F49F6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2BDA597B-CAC1-4DF0-86F0-42E142C654E9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "725C78C9-12CE-406F-ABE8-0813A01D66E8"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}