CVE-2020-13800: Canonical Ubuntu Linux

Medium severity, CVSS 6.0. EPSS: 0.5% chance of exploitation in the next 30 days.

ati-vga in hw/display/ati.c in QEMU 4.2.0 allows guest OS users to trigger infinite recursion via a crafted mm_index value during an ati_mm_read or ati_mm_write call.

Affected products

• Canonical Ubuntu Linux: version 16.04 only; version 18.04 only; version 20.04 only
• Opensuse Leap: version 15.2 only
• Qemu Qemu: version 4.2.0 only

Published 2020-06-04. Last modified 2026-06-17.