An off-by-one error was found in QEMU's KVM Xen guest support. A malicious guest could use this flaw to trigger out-of-bounds heap accesses in the QEMU process via the emulated Xen physdev hypercall interface, leading to a denial of service or potential memory corruption.
1:8.2.2+ds-0ubuntu1.131:10.1.0+ds-5ubuntu2.4Exploitability
AV:LAC:LPR:LUI:NScope
S:CImpact
C:NI:NA:HCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H