An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU in versions before 5.2.0. This issue occurs while processing USB packets from a guest when USBDevice 'setup_len' exceeds its 'data_buf[4096]' in the do_token_in, do_token_out routines. This flaw allows a guest user to crash the QEMU process, resulting in a denial of service, or the potential execution of arbitrary code with the privileges of the QEMU process on the host.

Related CVEs

CVE-2020-14364

Key Information

GHSA ID

GHSA-fq9g-vccc-q7c7

Published

May 24, 2022 5:26 PM

Last Modified

November 16, 2022 7:00 PM

CVSS Score

7.5 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: June 15, 2025 6:24 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.