The KVM implementation in the Linux kernel through 4.20.5 has an Information Leak.
3.13.0-168.2184.4.0-1040.434.15.0-1041.45~14.04.14.4.0-144.170~14.04.14.4.0-145.1714.4.0-1079.894.15.0-1035.37~16.04.14.15.0-1041.454.15.0-1029.31~16.04.14.15.0-47.50~16.04.1Exploitability
AV:LAC:LPR:LUI:NScope
S:UImpact
C:HI:NA:NCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N