{ "id": "CVE-2020-28588", "sourceIdentifier": "talos-cna@cisco.com", "published": "2021-05-10T19:15:08.017", "lastModified": "2024-11-21T05:22:57.560", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "An information disclosure vulnerability exists in the /proc/pid/syscall functionality of Linux Kernel 5.1 Stable and 5.4.66. More specifically, this issue has been introduced in v5.1-rc4 (commit 631b7abacd02b88f4b0795c08b54ad4fc3e7c7c0) and is still present in v5.10-rc4, so it\u2019s likely that all versions in between are affected. An attacker can read /proc/pid/syscall to trigger this vulnerability, which leads to the kernel leaking memory contents." }, { "lang": "es", "value": "Se presenta una vulnerabilidad de divulgaci\u00f3n de informaci\u00f3n en la funcionalidad /proc/pid/syscall de Linux Kernel versiones 5.1 Stable y 5.4.66. M\u00e1s espec\u00edficamente, este problema ha sido introducido en la versi\u00f3n v5.1-rc4 (commit 631b7abacd02b88f4b0795c08b54ad4fc3e7c7c0) y todav\u00eda est\u00e1 presente en la versi\u00f3n v5.10-rc4, por lo que es probable que todas las versiones intermedias est\u00e9n afectadas. Un atacante puede leer /proc/pid/syscall para activar esta vulnerabilidad, que conlleva a la perdida de contenido de la memoria del kernel" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE" }, "exploitabilityScore": 1.8, "impactScore": 3.6 } ], "cvssMetricV30": [ { "source": "talos-cna@cisco.com", "type": "Secondary", "cvssData": { "version": "3.0", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "baseScore": 4.0, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE" }, "exploitabilityScore": 2.5, "impactScore": 1.4 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "baseScore": 2.1, "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "availabilityImpact": "NONE" }, "baseSeverity": "LOW", "exploitabilityScore": 3.9, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "talos-cna@cisco.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-681" } ] }, { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-681" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:5.4.66:*:*:*:*:*:*:*", "matchCriteriaId": "08CD832A-636A-4BF7-B1D2-2D244AEACDD1" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:5.9.8:*:*:*:*:*:*:*", "matchCriteriaId": "D0602B82-405F-407B-8C88-7DB0C82D1165" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:5.10:rc4:*:*:*:*:*:*", "matchCriteriaId": "0CD159FA-170F-4389-9085-CACCF97ABB1E" } ] } ] } ], "references": [ { "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2020-1211", "source": "talos-cna@cisco.com", "tags": [ "Exploit", "Technical Description", "Third Party Advisory" ] }, { "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2020-1211", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Exploit", "Technical Description", "Third Party Advisory" ] } ] }