{"id":"CLEANSTART-2024-EN16488","summary":"Another race in XENMAPSPACE_grant_table handling Guests are permitted access to certain Xen-owned pages of memory","details":"Security vulnerability affects the xen package. Another race in XENMAPSPACE_grant_table handling Guests are permitted access to certain Xen-owned pages of memory.","modified":"2026-10-31T16:00:16.545169943Z","published":"2026-10-31T14:23:45.311659Z","upstream":["CVE-2021-28701"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2024/CLEANSTART-2024-EN16488.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2021-28701"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28701"}],"affected":[{"package":{"name":"xen","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/xen?arch=x86_64"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-r3"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-EN16488.json"}},{"package":{"name":"xen","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/xen?arch=armv7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-r3"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-EN16488.json"}},{"package":{"name":"xen","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/xen?arch=aarch64"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-r3"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2024/CLEANSTART-2024-EN16488.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"}]}