CVE-2020-27661

medium

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

https://www.mail-archive.com/[email protected]/msg1770368.html

https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg04263.html

https://bugzilla.redhat.com/show_bug.cgi?id=1890653

https://git.qemu.org/?p=qemu.git;a=commit;h=bea2a9e3e00b275dc40cfa09c760c715b8753e03

https://security.netapp.com/advisory/ntap-20210720-0010/

Details

Source: MITRE

Published: 2021-06-02

Updated: 2022-05-13

Type: CWE-369

Risk Information

CVSS v2

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Impact Score: 4

Exploitability Score: 2

Severity: MEDIUM