CVE-2020-25723

low

Description

A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on the host, resulting in a denial of service.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1898579

https://security.netapp.com/advisory/ntap-20201218-0004/

http://www.openwall.com/lists/oss-security/2020/12/22/1

https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html

Details

Source: MITRE

Published: 2020-12-02

Updated: 2022-09-30

Type: CWE-617

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: 3.2

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

Impact Score: 1.4

Exploitability Score: 1.5

Severity: LOW