CVE-2016-6351

Qemu: scsi: esp: OOB write access in esp_do_dma

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Severity

Moderate

Red Hat Product Security

5.1

CVSS 3.0

Review impact separately from score.

Published · June 15, 2016

Updated · November 21, 2025

Description

The esp_do_dma function in hw/scsi/esp.c in QEMU (aka Quick Emulator), when built with ESP/NCR53C9x controller emulation support, allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) or execute arbitrary code on the QEMU host via vectors involving DMA read into ESP command buffer.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 5.1
CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L

CVSS 2.0 · 4
AV:A/AC:H/Au:S/C:P/I:P/A:P

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')