Use After Free Affecting qemu-project/qemu package, versions [,2.8.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.05% (24th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Use After Free vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-UNMANAGED-QEMUPROJECTQEMU-3006938
  • published26 Jan 2022
  • disclosed23 Dec 2016
  • creditUnknown

Introduced: 23 Dec 2016

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

How to fix?

Upgrade qemu-project/qemu to version 2.8.0 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free. 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 Scores

version 3.1