Resource Exhaustion Affecting qemu package, versions *


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-UBUNTU2004-QEMU-1570340
  • published27 Aug 2021
  • disclosed26 Aug 2022

Introduced: 27 Aug 2021

CVE-2021-3735  (opens in a new tab)
CWE-400  (opens in a new tab)
CWE-667  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:20.04 qemu.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

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.

CVSS Scores

version 3.1