CVE-2016-7422

Qemu: virtio: null pointer dereference in virtqueu_map_desc

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Severity

Low

Red Hat Product Security

2.6

CVSS 3.0

Review impact separately from score.

Published · September 15, 2016

Updated · June 28, 2026

Description

The virtqueue_map_desc function in hw/virtio/virtio.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via a large I/O descriptor buffer length value.

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 · 2.6
CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS 2.0 · 2.3
AV:A/AC:M/Au:S/C:N/I:N/A:P

CWE-476 · NULL Pointer Dereference