CVE-2020-14364
Public on 2020-08-31
Modified on 2020-11-16
Description
An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU. 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.
Severity
Important
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | qemu | 2020-11-09 | ALAS2-2020-1562 | Fixed |
| Amazon Linux 1 | qemu-kvm | 2020-11-14 | ALAS-2020-1449 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 5.0 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L |
| NVD | CVSSv2 | 4.4 | AV:L/AC:M/Au:N/C:P/I:P/A:P |
| NVD | CVSSv3 | 5.0 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L |