{"api_version":"1","generated_at":"2026-04-23T03:25:26+00:00","cve":"CVE-2019-19579","urls":{"html":"https://cve.report/CVE-2019-19579","api":"https://cve.report/api/cve/CVE-2019-19579.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2019-19579","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-19579"},"summary":{"title":"CVE-2019-19579","description":"An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device (and assignable-add is not used), because of an incomplete fix for CVE-2019-18424. XSA-302 relies on the use of libxl's \"assignable-add\" feature to prepare devices to be assigned to untrusted guests. Unfortunately, this is not considered a strictly required step for device assignment. The PCI passthrough documentation on the wiki describes alternate ways of preparing devices for assignment, and libvirt uses its own ways as well. 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Systems which do not use PCI pass-through are not vulnerable.","Type":"Description","Title":null},{"CveYear":"2019","CveId":"19579","Ordinal":"2","NoteData":"2019-12-04","Type":"Other","Title":"Published"},{"CveYear":"2019","CveId":"19579","Ordinal":"3","NoteData":"2020-01-14","Type":"Other","Title":"Modified"}]}}}