CVE-2021-47489

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debugfs CVE-2021-42327 fue solucionado por: commit f23750b5b3d98653b31d4469592935ef6364ad67 Autor: Thelford Williams Fecha: mi\u00e9rcoles 13 de octubre 16:04:13 2021 -0400 drm/amdgpu: corrige la escritura fuera de los l\u00edmites, pero amdgpu_dm_debugfs.c contiene m\u00e1s del mismo problema, as\u00ed que solucione los restantes. v2: * Agregar correcci\u00f3n faltante en dp_max_bpc_write (Harry Wentland)"}], "id": "CVE-2021-47489", "lastModified": "2026-06-17T04:17:36.710", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": 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{"bugzilla": {"description": "kernel: drm/amdgpu: Fix even more out of bound writes from debugfs", "id": "2282928", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282928"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/amdgpu: Fix even more out of bound writes from debugfs\nCVE-2021-42327 was fixed by:\ncommit f23750b5b3d98653b31d4469592935ef6364ad67\nAuthor: Thelford Williams <tdwilliamsiv@gmail.com>\nDate: Wed Oct 13 16:04:13 2021 -0400\ndrm/amdgpu: fix out of bounds write\nbut amdgpu_dm_debugfs.c contains more of the same issue so fix the\nremaining ones.\nv2:\n* Add missing fix in dp_max_bpc_write (Harry Wentland)", "A vulnerability has been identified in the Linux kernel's amdgpu_dm_debugfs.c file, part of the AMD GPU display manager debug filesystem. This flaw involves improper out-of-bounds write behaviors within a series of functions. Exploitation of these vulnerabilities could lead to memory corruption or system crashes (denial of service)."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2021-47489", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47489\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47489\nhttps://lore.kernel.org/linux-cve-announce/2024052240-CVE-2021-47489-3f3a@gregkh/T"], "statement": "Red Hat Enterprise Linux is not impacted by this CVE, as the vulnerability in question does not affect the specific versions or configurations of the Linux kernel used in its distributions. This ensures that users of Red Hat Enterprise Linux are not exposed to the potential risks associated with this issue, and no further action or mitigation is necessary for systems running this operating system.", "threat_severity": "Moderate"}

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