What is the severity of CVE-2016-8668?

CVE-2016-8668 has been classified as a high severity vulnerability due to its potential to cause denial of service.

How do I fix CVE-2016-8668?

To mitigate CVE-2016-8668, update QEMU to a version later than 2.7.1 or apply any available patches.

Who is affected by CVE-2016-8668?

CVE-2016-8668 affects local guest OS administrators using QEMU versions up to and including 2.7.1.

What is the nature of the vulnerability in CVE-2016-8668?

CVE-2016-8668 involves an out-of-bounds read vulnerability in the rocker_io_writel function that can lead to a QEMU process crash.

What kind of attack can exploit CVE-2016-8668?

An attacker can exploit CVE-2016-8668 by leveraging the improper handling of DMA buffer sizes to crash the QEMU process.

Vulnerability/
CVE-2016-8668

medium

CWE

120

4/11/2016

6/8/2024

CVE-2016-8668

First published: Fri Nov 04 2016(Updated: )

The rocker_io_writel function in hw/net/rocker/rocker.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging failure to limit DMA buffer size.

Credit: secalert@redhat.com

Affected Software	Affected Version	How to fix
QEMU KVM	<=2.7.1
openSUSE	=42.2

Remedy

http://www.openwall.com/lists/oss-security/2016/10/14/8

Remedy

https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg02501.html

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2016-8668?
CVE-2016-8668 has been classified as a high severity vulnerability due to its potential to cause denial of service.
How do I fix CVE-2016-8668?
To mitigate CVE-2016-8668, update QEMU to a version later than 2.7.1 or apply any available patches.
Who is affected by CVE-2016-8668?
CVE-2016-8668 affects local guest OS administrators using QEMU versions up to and including 2.7.1.
What is the nature of the vulnerability in CVE-2016-8668?
CVE-2016-8668 involves an out-of-bounds read vulnerability in the rocker_io_writel function that can lead to a QEMU process crash.
What kind of attack can exploit CVE-2016-8668?
An attacker can exploit CVE-2016-8668 by leveraging the improper handling of DMA buffer sizes to crash the QEMU process.

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agent/remedy
collector/mitre-cve
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agent/last-modified-date
agent/severity
agent/weakness
agent/description
agent/first-publish-date
agent/event
agent/source
agent/softwarecombine
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
vendor/qemu
canonical/qemu kvm
version/qemu kvm/2.7.1
vendor/opensuse
canonical/opensuse
version/opensuse/42.2

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Frequently Asked Questions

What is the severity of CVE-2016-8668?
CVE-2016-8668 has been classified as a high severity vulnerability due to its potential to cause denial of service.
How do I fix CVE-2016-8668?
To mitigate CVE-2016-8668, update QEMU to a version later than 2.7.1 or apply any available patches.
Who is affected by CVE-2016-8668?
CVE-2016-8668 affects local guest OS administrators using QEMU versions up to and including 2.7.1.
What is the nature of the vulnerability in CVE-2016-8668?
CVE-2016-8668 involves an out-of-bounds read vulnerability in the rocker_io_writel function that can lead to a QEMU process crash.
What kind of attack can exploit CVE-2016-8668?
An attacker can exploit CVE-2016-8668 by leveraging the improper handling of DMA buffer sizes to crash the QEMU process.