CVE-2024-50134

{"id": "CVE-2024-50134", "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": "2024-11-05T18:15:16.093", "references": [{"url": "https://git.kernel.org/stable/c/02c86c5d5ef4bbba17d38859c74872825f536617", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/34a422274b693507025a7db21519865d1862afcb", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7458a6cdaebb3dc59af8578ee354fae78a154c4a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/75f828e944dacaac8870418461d3d48a1ecf2331", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9eb32bd23bbcec44bcbef27b7f282b7a7f3d0391", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d92b90f9a54d9300a6e883258e79f36dab53bfae", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/fae9dc12c61ce23cf29d09824a741b7b1ff8f01f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vboxvideo: Replace fake VLA at end of vbva_mouse_pointer_shape with real VLA\n\nReplace the fake VLA at end of the vbva_mouse_pointer_shape shape with\na real VLA to fix a \"memcpy: detected field-spanning write error\" warning:\n\n[ 13.319813] memcpy: detected field-spanning write (size 16896) of single field \"p->data\" at drivers/gpu/drm/vboxvideo/hgsmi_base.c:154 (size 4)\n[ 13.319841] WARNING: CPU: 0 PID: 1105 at drivers/gpu/drm/vboxvideo/hgsmi_base.c:154 hgsmi_update_pointer_shape+0x192/0x1c0 [vboxvideo]\n[ 13.320038] Call Trace:\n[ 13.320173] hgsmi_update_pointer_shape [vboxvideo]\n[ 13.320184] vbox_cursor_atomic_update [vboxvideo]\n\nNote as mentioned in the added comment it seems the original length\ncalculation for the allocated and send hgsmi buffer is 4 bytes too large.\nChanging this is not the goal of this patch, so this behavior is kept."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/vboxvideo: Reemplazar VLA falso al final de vbva_mouse_pointer_shape con VLA real Reemplace el VLA falso al final de la forma vbva_mouse_pointer_shape con un VLA real para corregir una advertencia \"memcpy: error de escritura que abarca el campo detectado\": [ 13.319813] memcpy: se detect\u00f3 una escritura que abarca el campo (tama\u00f1o 16896) de un solo campo \"p->data\" en drivers/gpu/drm/vboxvideo/hgsmi_base.c:154 (tama\u00f1o 4) [ 13.319841] ADVERTENCIA: CPU: 0 PID: 1105 en drivers/gpu/drm/vboxvideo/hgsmi_base.c:154 hgsmi_update_pointer_shape+0x192/0x1c0 [vboxvideo] [ [13.320038] Seguimiento de llamadas: [13.320173] hgsmi_update_pointer_shape [vboxvideo] [13.320184] vbox_cursor_atomic_update [vboxvideo] Tenga en cuenta que, como se menciona en el comentario agregado, parece que el c\u00e1lculo de longitud original para el b\u00fafer hgsmi asignado y enviado es 4 bytes m\u00e1s grande. Cambiar esto no es el objetivo de este parche, por lo que se mantiene este comportamiento."}], "lastModified": "2024-11-08T16:15:47.593", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C30547DB-040F-4F1C-B663-7B90865317E2", "versionEndExcluding": "5.15.170"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C08A77A6-E42E-4EFD-B5A1-2BF6CBBB42AE", "versionEndExcluding": "6.1.115", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5D15CA59-D15C-4ACD-8B03-A072DEAD2081", "versionEndExcluding": "6.6.59", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E4486B12-007B-4794-9857-F07145637AA1", "versionEndExcluding": "6.11.6", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}