CVE-2020-13765: Canonical Ubuntu Linux

Medium severity, CVSS 5.6. EPSS: 2.4% chance of exploitation in the next 30 days.

rom_copy() in hw/core/loader.c in QEMU 4.0 and 4.1.0 does not validate the relationship between two addresses, which allows attackers to trigger an invalid memory copy operation.

Affected products

• Canonical Ubuntu Linux: version 16.04 only; version 18.04 only; version 20.04 only
• Debian Debian Linux: version 8.0 only; version 9.0 only
• Qemu Qemu: version 4.0.0 only; version 4.1.0 only

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