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{"acknowledgement": "Red Hat would like to thank the Xen project for reporting this issue. Upstream acknowledges Andrew Cooper (Citrix) as the original reporter.", "bugzilla": {"description": "xen: memory leak with MSR emulation (XSA-253)", "id": "1528602", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1528602"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.8", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-400", "details": ["In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service (host OS memory consumption) by rebooting many times."], "name": "CVE-2018-5244", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "xen", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2018-01-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2018-5244\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-5244"], "threat_severity": "Moderate"}