CVE-2021-3735

State: Published
Severity: Not scored
Published: Aug 26, 2022
Updated: Feb 28, 2025
Reserved: Aug 25, 2021

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.

Scores

The record has no CVSS score.

Weaknesses

CWE-667 Improper Locking -> CWE-400 - Uncontrolled Resource Consumption

Affected Products

Product	Versions
QEMUn/a	Not KnownAffected

References

https://bugzilla.redhat.com/show_bug.cgi?id=1997184
https://access.redhat.com/security/cve/CVE-2021-3735
https://security-tracker.debian.org/tracker/CVE-2021-3735
https://security.netapp.com/advisory/ntap-20250228-0009/

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.