PulseLinuxLINUX UPDATE INTELLIGENCE
CVE Database›Document archive›CVE-2016-7421

CVE-2016-7421

Qemu: scsi: pvscsi: infinite loop when processing IO requests

Loading…

Severity

Low

Red Hat Product Security

3

CVSS 3.0

Review impact separately from score.

Published · September 7, 2016

Updated · November 21, 2025

Description

The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging failure to limit process IO loop to the ring size.

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 · 3
CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L

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

CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')