CVE-2021-3714

{"id": "CVE-2021-3714", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.2}]}, "published": "2022-08-23T16:15:09.600", "references": [{"url": "https://access.redhat.com/security/cve/CVE-2021-3714", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://arxiv.org/abs/2111.08553", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://arxiv.org/pdf/2111.08553.pdf", "tags": ["Technical Description", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1931327", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "secalert@redhat.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}, {"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-200"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in the Linux kernels memory deduplication mechanism. Previous work has shown that memory deduplication can be attacked via a local exploitation mechanism. The same technique can be used if an attacker can upload page sized files and detect the change in access time from a networked service to determine if the page has been merged."}, {"lang": "es", "value": "Se ha encontrado un fallo en el mecanismo de de duplicaci\u00f3n de memoria del kernel de Linux. Trabajos anteriores han demostrado que la de duplicaci\u00f3n de memoria puede ser atacada por medio de un mecanismo de explotaci\u00f3n local. La misma t\u00e9cnica puede usarse si un atacante puede cargar archivos del tama\u00f1o de una p\u00e1gina y detectar el cambio en el tiempo de acceso desde un servicio en red para determinar si la p\u00e1gina ha sido fusionada."}], "lastModified": "2024-02-01T18:51:23.660", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2F6AB192-9D7D-4A9A-8995-E53A9DE9EAFC"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "053C1B35-3869-41C2-9551-044182DE0A64"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}