CVE-2020-27661

MEDIUM

QEMU < 5.1.1 - Denial of Service via Divide-by-Zero in dwc2_handle_packet

Title source: llm
STIX 2.1

Description

A divide-by-zero issue was found in dwc2_handle_packet in hw/usb/hcd-dwc2.c in the hcd-dwc2 USB host controller emulation of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.

References (5)

Core 5
Core References
Mailing List, Patch, Third Party Advisory x_refsource_misc
https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg04263.html
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1890653
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20210720-0010/

Scores

CVSS v3 6.5
EPSS 0.0031
EPSS Percentile 22.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Details

CWE
CWE-369
Status published
Products (1)
qemu/qemu < 5.1.1
Published Jun 02, 2021
Tracked Since Feb 18, 2026