system
Describe <CVE-2020-27671>.
user
What is <CVE-2020-27671>?
assistant
An issue was discovered in Xen through 4.14.x allowing x86 HVM and PVH guest OS users to cause a denial of service (data corruption), cause a data leak, or possibly gain privileges because coalescing of per-page IOMMU TLB flushes is mishandled..