CVE-2017-16845: Canonical Ubuntu Linux

Critical severity, CVSS 10.0. EPSS: 2.9% chance of exploitation in the next 30 days.

hw/input/ps2.c in Qemu does not validate 'rptr' and 'count' values during guest migration, leading to out-of-bounds access.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 17.10 only; version 18.04 only
• Debian Debian Linux: version 8.0 only; version 9.0 only
• Qemu Qemu: up to and including 2.11.2

Published 2017-11-17. Last modified 2026-06-17.