{ "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2020-29481", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "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/ 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." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "url": "https://xenbits.xenproject.org/xsa/advisory-322.html", "refsource": "MISC", "name": "https://xenbits.xenproject.org/xsa/advisory-322.html" }, { "refsource": "DEBIAN", "name": "DSA-4812", "url": "https://www.debian.org/security/2020/dsa-4812" }, { "refsource": "MLIST", "name": "[oss-security] 20201216 Xen Security Advisory 322 v5 (CVE-2020-29481) - Xenstore: new domains inheriting existing node permissions", "url": "http://www.openwall.com/lists/oss-security/2020/12/16/3" }, { "refsource": "FEDORA", "name": "FEDORA-2020-64859a826b", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OBLV6L6Q24PPQ2CRFXDX4Q76KU776GKI/" }, { "refsource": "FEDORA", "name": "FEDORA-2020-df772b417b", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2C6M6S3CIMEBACH6O7V4H2VDANMO6TVA/" } ] } }