{"containers": {"cna": {"affected": [{"product": "xen", "vendor": "Xen", "versions": [{"lessThan": "4.12", "status": "unknown", "version": "unspecified", "versionType": "custom"}, {"lessThan": "unspecified", "status": "affected", "version": "4.15.x", "versionType": "custom"}, {"lessThan": "unspecified", "status": "unaffected", "version": "next of xen-unstable", "versionType": "custom"}]}, {"product": "xen", "vendor": "Xen", "versions": [{"status": "affected", "version": "4.11.x"}]}, {"product": "xen", "vendor": "Xen", "versions": [{"lessThan": "4.12", "status": "unknown", "version": "unspecified", "versionType": "custom"}, {"lessThan": "unspecified", "status": "affected", "version": "4.12.x", "versionType": "custom"}, {"lessThan": "unspecified", "status": "unaffected", "version": "next of 4.14.x", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "{'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'This issue was discovered by Julien Grall of Amazon.'}]}}}"}], "descriptions": [{"lang": "en", "value": "Another race in XENMAPSPACE_grant_table handling Guests are permitted access to certain Xen-owned pages of memory. 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