{ "id": "CVE-2020-29485", "sourceIdentifier": "cve@mitre.org", "published": "2020-12-15T18:15:15.490", "lastModified": "2023-11-07T03:21:31.117", "vulnStatus": "Modified", "descriptions": [ { "lang": "en", "value": "An issue was discovered in Xen 4.6 through 4.14.x. When acting upon a guest XS_RESET_WATCHES request, not all tracking information is freed. A guest can cause unbounded memory usage in oxenstored. This can lead to a system-wide DoS. Only systems using the Ocaml Xenstored implementation are vulnerable. Systems using the C Xenstored implementation are not vulnerable." }, { "lang": "es", "value": "Se detect\u00f3 un problema en Xen versiones 4.6 hasta 4.14.x. Cuando se act\u00faa sobre la petici\u00f3n de un invitado XS_RESET_WATCHES, no toda la informaci\u00f3n de seguimiento es liberada. Un invitado puede causar un uso ilimitado de la memoria en oxenstored. Esto puede conllevar a una DoS en todo el sistema. Solo los sistemas que utilizan la implementaci\u00f3n de Ocaml Xenstored son vulnerables. Los sistemas que utilizan la implementaci\u00f3n de C Xenstored no son vulnerables" } ], "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:N/I:N/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 1.8, "impactScore": 3.6 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 4.9 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 3.9, "impactScore": 6.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-401" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6.0", "versionEndIncluding": "4.14.0", "matchCriteriaId": "146CF415-A09F-41E9-AB62-044BE9A53DDF" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "matchCriteriaId": "36D96259-24BD-44E2-96D9-78CE1D41F956" }, { "vulnerable": true, "criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194" } ] } ] } ], "references": [ { "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2C6M6S3CIMEBACH6O7V4H2VDANMO6TVA/", "source": "cve@mitre.org" }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OBLV6L6Q24PPQ2CRFXDX4Q76KU776GKI/", "source": "cve@mitre.org" }, { "url": "https://www.debian.org/security/2020/dsa-4812", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://xenbits.xenproject.org/xsa/advisory-330.txt", "source": "cve@mitre.org", "tags": [ "Patch", "Third Party Advisory" ] } ] }