{"id":"CVE-2020-29481","details":"An issue was discovered in Xen through 4.14.x. Access rights of Xenstore nodes are per domid. Unfortunately, existing granted access rights are not removed when a domain is being destroyed. This means that a new domain created with the same domid will inherit the access rights to Xenstore nodes from the previous domain(s) with the same domid. Because all Xenstore entries of a guest below /local/domain/\u003cdomid\u003e are being deleted by Xen tools when a guest is destroyed, only Xenstore entries of other guests still running are affected. For example, a newly created guest domain might be able to read sensitive information that had belonged to a previously existing guest domain. Both Xenstore implementations (C and Ocaml) are vulnerable.","modified":"2026-03-13T00:40:26.645940Z","published":"2020-12-15T18:15:15.067Z","related":["SUSE-SU-2020:14578-1","SUSE-SU-2020:3880-1","SUSE-SU-2020:3881-1","SUSE-SU-2020:3913-1","SUSE-SU-2020:3914-1","SUSE-SU-2020:3915-1","SUSE-SU-2020:3916-1","SUSE-SU-2020:3945-1","openSUSE-SU-2020:2313-1","openSUSE-SU-2020:2331-1","openSUSE-SU-2024:11520-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2C6M6S3CIMEBACH6O7V4H2VDANMO6TVA/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OBLV6L6Q24PPQ2CRFXDX4Q76KU776GKI/"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2020/12/16/3"},{"type":"ADVISORY","url":"https://www.debian.org/security/2020/dsa-4812"},{"type":"FIX","url":"https://xenbits.xenproject.org/xsa/advisory-322.html"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"4.14.0"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]},{"events":[{"introduced":"0"},{"last_affected":"32"}]},{"events":[{"introduced":"0"},{"last_affected":"33"}]}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-29481.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}]}