vulnerability
Ubuntu: (CVE-2021-3735): qemu vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:L/Au:M/C:N/I:N/A:C) | Aug 26, 2022 | Jun 26, 2025 | Aug 18, 2025 |
Severity
4
CVSS
(AV:L/AC:L/Au:M/C:N/I:N/A:C)
Published
Aug 26, 2022
Added
Jun 26, 2025
Modified
Aug 18, 2025
Description
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.
Solution
no-fix-ubuntu-package
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