CVE-2020-13659: Canonical Ubuntu Linux

Low severity, CVSS 2.5. EPSS: 0.4% chance of exploitation in the next 30 days.

address_space_map in exec.c in QEMU 4.2.0 can trigger a NULL pointer dereference related to BounceBuffer.

Affected products

• Canonical Ubuntu Linux: version 16.04 only; version 18.04 only; version 20.04 only
• Debian Debian Linux: version 9.0 only; version 10.0 only
• Opensuse Leap: version 15.2 only
• Qemu Qemu: version 4.2.0 only

Published 2020-06-02. Last modified 2026-06-17.