CVE-2020-14364
MEDIUM5.0EPSS 12.9%Published: 8/31/2020Modified: 4/28/2026
Description
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.
Affected packages (2)
- Alpine/xenfrom 0, < 4.12.3-r3
- Debian/qemufrom 0, < 1:5.1+dfsg-4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.0 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L |