Vulnerability Database

296,147

Total vulnerabilities in the database

CVE-2021-20203

An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.

  • Published: Feb 25, 2021
  • Updated: Apr 14, 2023
  • CVE: CVE-2021-20203
  • Severity: Low
  • Exploit:

CVSS v3:

  • Severity: Low
  • Score: 3.2
  • AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L

CVSS v2:

  • Severity: Low
  • Score: 2.1
  • AV:L/AC:L/Au:N/C:N/I:N/A:P

CWEs:

Software From Fixed in
qemu / qemu - 5.2.0.x
fedoraproject / fedora 33 33.x
debian / debian_linux 9.0 9.0.x
debian / debian_linux 10.0 10.0.x