{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-11T01:32:04.058","vulnerabilities":[{"cve":{"id":"CVE-2022-26356","sourceIdentifier":"security@xen.org","published":"2022-04-05T13:15:07.727","lastModified":"2024-11-21T06:53:49.023","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Racy interactions between dirty vram tracking and paging log dirty hypercalls Activation of log dirty mode done by XEN_DMOP_track_dirty_vram (was named HVMOP_track_dirty_vram before Xen 4.9) is racy with ongoing log dirty hypercalls. A suitably timed call to XEN_DMOP_track_dirty_vram can enable log dirty while another CPU is still in the process of tearing down the structures related to a previously enabled log dirty mode (XEN_DOMCTL_SHADOW_OP_OFF). This is due to lack of mutually exclusive locking between both operations and can lead to entries being added in already freed slots, resulting in a memory leak."},{"lang":"es","value":"Una activación del modo de registro sucio realizada por XEN_DMOP_track_dirty_vram (es llamada HVMOP_track_dirty_vram antes de Xen versión 4.9) es producido con las hiperllamadas de registro sucio en curso. Una llamada a XEN_DMOP_track_dirty_vram con el tiempo apropiado puede habilitar log dirty mientras otra CPU está todavía en el proceso de desmontar las estructuras relacionadas con un modo log dirty previamente habilitado (XEN_DOMCTL_SHADOW_OP_OFF). Esto es debido a una falta de bloqueo mutuamente excluyente entre ambas operaciones y puede conllevar a que son añadidas entradas en ranuras ya liberadas, dando lugar a una pérdida de memoria"}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H","baseScore":5.6,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.1,"impactScore":4.0}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:L/AC:H/Au:N/C:N/I:N/A:C","baseScore":4.0,"accessVector":"LOCAL","accessComplexity":"HIGH","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"COMPLETE"},"baseSeverity":"MEDIUM","exploitabilityScore":1.9,"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-667"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:*","versionStartIncluding":"4.0.0","versionEndExcluding":"4.12.0","matchCriteriaId":"D4199860-E11E-4F84-BA0C-A9CB463C7A74"},{"vulnerable":true,"criteria":"cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:*","versionStartIncluding":"4.13.0","versionEndExcluding":"4.14.0","matchCriteriaId":"F64332BF-1144-4924-8413-FA14FB0A94B6"},{"vulnerable":true,"criteria":"cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:*","versionStartIncluding":"4.15.0","versionEndExcluding":"4.16.0","matchCriteriaId":"71566154-EA2A-4C5F-AC6A-8EFBD6159BB9"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*","matchCriteriaId":"FA6FEEC2-9F11-4643-8827-749718254FED"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*","matchCriteriaId":"A930E247-0B43-43CB-98FF-6CE7B8189835"},{"vulnerable":true,"criteria":"cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*","matchCriteriaId":"80E516C0-98A4-4ADE-B69F-66A772E2BAAA"}]}]}],"references":[{"url":"http://www.openwall.com/lists/oss-security/2022/04/05/1","source":"security@xen.org","tags":["Mailing List","Patch","Third Party Advisory"]},{"url":"http://xenbits.xen.org/xsa/advisory-397.html","source":"security@xen.org","tags":["Patch","Third Party Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ETPM2OVZZ6KOS2L7QO7SIW6XWT5OW3F/","source":"security@xen.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHFSRVLM2JUCPDC2KGB7ETPQYJLCGBLD/","source":"security@xen.org"},{"url":"https://security.gentoo.org/glsa/202402-07","source":"security@xen.org"},{"url":"https://www.debian.org/security/2022/dsa-5117","source":"security@xen.org","tags":["Third Party Advisory"]},{"url":"https://xenbits.xenproject.org/xsa/advisory-397.txt","source":"security@xen.org","tags":["Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2022/04/05/1","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Patch","Third Party Advisory"]},{"url":"http://xenbits.xen.org/xsa/advisory-397.html","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ETPM2OVZZ6KOS2L7QO7SIW6XWT5OW3F/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHFSRVLM2JUCPDC2KGB7ETPQYJLCGBLD/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202402-07","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2022/dsa-5117","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://xenbits.xenproject.org/xsa/advisory-397.txt","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]}]}}]}