VULNERABILITY INTELLIGENCE

CVE-2020-14364

CVSS score5 MEDIUM
EPSS probability5.40%
CISA KEVNot currently listed
Published2020-08-31
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L

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.

Weakness classification

  • CWE-125: Out-of-bounds Read
  • CWE-787: Out-of-bounds Write

Primary references