What is the severity of CVE-2016-9923?

CVE-2016-9923 is classified as a high severity vulnerability due to its potential to cause a denial of service.

How do I fix CVE-2016-9923?

To fix CVE-2016-9923, upgrade QEMU to version 2.8.0 or later, which includes the necessary patch.

What type of vulnerability is CVE-2016-9923?

CVE-2016-9923 is a use after free vulnerability related to the 'chardev' backend in Quick Emulator.

What could an attacker achieve by exploiting CVE-2016-9923?

An attacker could exploit CVE-2016-9923 to crash a QEMU process on the host, resulting in a denial of service.

Which versions of QEMU are affected by CVE-2016-9923?

QEMU versions up to and including 2.7.1 are affected by CVE-2016-9923.

Vulnerability/
CVE-2016-9923

medium

5.5

CWE

416

23/12/2016

6/8/2024

CVE-2016-9923: Use After Free

First published: Fri Dec 23 2016(Updated: )

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.

Credit: secalert@redhat.com

Affected Software	Affected Version	How to fix
QEMU KVM	<=2.7.1

Remedy

http://www.openwall.com/lists/oss-security/2016/12/09/2

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2016-9923?
CVE-2016-9923 is classified as a high severity vulnerability due to its potential to cause a denial of service.
How do I fix CVE-2016-9923?
To fix CVE-2016-9923, upgrade QEMU to version 2.8.0 or later, which includes the necessary patch.
What type of vulnerability is CVE-2016-9923?
CVE-2016-9923 is a use after free vulnerability related to the 'chardev' backend in Quick Emulator.
What could an attacker achieve by exploiting CVE-2016-9923?
An attacker could exploit CVE-2016-9923 to crash a QEMU process on the host, resulting in a denial of service.
Which versions of QEMU are affected by CVE-2016-9923?
QEMU versions up to and including 2.7.1 are affected by CVE-2016-9923.

agent/type
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source/MITRE
agent/remedy
agent/author
agent/last-modified-date
agent/severity
agent/references
agent/event
agent/description
agent/first-publish-date
collector/nvd-index
agent/software-canonical-lookup-request
agent/weakness
agent/softwarecombine
agent/tags
agent/source
vendor/qemu
canonical/qemu kvm
version/qemu kvm/2.7.1

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Frequently Asked Questions

What is the severity of CVE-2016-9923?
CVE-2016-9923 is classified as a high severity vulnerability due to its potential to cause a denial of service.
How do I fix CVE-2016-9923?
To fix CVE-2016-9923, upgrade QEMU to version 2.8.0 or later, which includes the necessary patch.
What type of vulnerability is CVE-2016-9923?
CVE-2016-9923 is a use after free vulnerability related to the 'chardev' backend in Quick Emulator.
What could an attacker achieve by exploiting CVE-2016-9923?
An attacker could exploit CVE-2016-9923 to crash a QEMU process on the host, resulting in a denial of service.
Which versions of QEMU are affected by CVE-2016-9923?
QEMU versions up to and including 2.7.1 are affected by CVE-2016-9923.