Vulnerability Database

296,147

Total vulnerabilities in the database

CVE-2021-3735

A deadlock issue was found in the AHCI controller device of QEMU. It occurs on a software reset (ahci_reset_port) while handling a host-to-device Register FIS (Frame Information Structure) packet from the guest. A privileged user inside the guest could use this flaw to hang the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability.

  • Published: Aug 26, 2022
  • Updated: Apr 14, 2023
  • CVE: CVE-2021-3735
  • Severity: Low
  • Exploit:

CVSS v3:

  • Severity: Low
  • Score: 4.4
  • AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CWEs:

Software From Fixed in
qemu / qemu 6.1.0-rc4 6.1.0-rc4.x
debian / debian_linux 10.0 10.0.x
debian / debian_linux 11.0 11.0.x