CVE-2016-4952: Canonical Ubuntu Linux

Medium severity, CVSS 6.0. EPSS: 0.4% chance of exploitation in the next 30 days.

QEMU (aka Quick Emulator), when built with VMWARE PVSCSI paravirtual SCSI bus emulation support, allows local guest OS administrators to cause a denial of service (out-of-bounds array access) via vectors related to the (1) PVSCSI_CMD_SETUP_RINGS or (2) PVSCSI_CMD_SETUP_MSG_RING SCSI command.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 16.04 only
• Debian Debian Linux: version 8.0 only
• Qemu Qemu: up to and including 2.6.2

Published 2016-09-02. Last modified 2026-06-17.