CVE-2020-14364
5.0
MEDIUM
CVSS 3.1
EPSS 11.4%
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.
How to fix CVE-2020-14364
To remediate CVE-2020-14364, upgrade the affected package to a fixed version below.
- —upgrade to 4.12.3-r3 or later
- —upgrade to 1:5.1+dfsg-4 or later
Is CVE-2020-14364 being exploited?
Moderate — EPSS is 11.4%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (2)
- from 0, < 4.12.3-r3
- from 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 |