CVE-2021-3735

 

Published at: - 26-08-2022 06:15

Last modified: - 01-09-2022 06:03

Total changes: - 2

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

 

Verification logic

 

Reference

• https://access.redhat.com/security/cve/CVE-2021-3735
• https://security-tracker.debian.org/tracker/CVE-2021-3735
• https://bugzilla.redhat.com/show_bug.cgi?id=1997184

 

Keywords

NVD

 

CVE-2021-3735

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures