Race Condition Affecting qemu package, versions <1:8.0.3+dfsg-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-DEBIAN13-QEMU-5815238
  • published2 Aug 2023
  • disclosed13 Sept 2023

Introduced: 2 Aug 2023

CVE-2023-3301  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Debian:13 qemu to version 1:8.0.3+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

A flaw was found in QEMU. The async nature of hot-unplug enables a race scenario where the net device backend is cleared before the virtio-net pci frontend has been unplugged. A malicious guest could use this time window to trigger an assertion and cause a denial of service.

CVSS Scores

version 3.1