Vulnerability Details CVE-2018-5244
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 18.6%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.9
Products affected by CVE-2018-5244