Use After Free Affecting qemu package, versions <1:2.8+dfsg-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.21% (65th percentile)

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  • Snyk IDSNYK-ECHOLATEST-QEMU-18321771
  • published27 Jul 2026
  • disclosed23 Dec 2016

Introduced: 23 Dec 2016

CVE-2016-9923  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Echo:latest qemu to version 1:2.8+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 Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Quick Emulator (Qemu) built with the 'chardev' backend support is vulnerable to a use after free issue. It could occur while hotplug and unplugging the device in the guest. A guest user/process could use this flaw to crash a Qemu process on the host resulting in DoS.

CVSS Base Scores

version 3.1