What is the severity of CVE-2021-47039?

CVE-2021-47039 has been classified as a medium severity vulnerability affecting the Linux kernel.

How do I fix CVE-2021-47039?

To mitigate CVE-2021-47039, ensure that your Linux kernel is updated to version 5.11.21 or later, or version 5.12.4 or later.

Which versions of the Linux kernel are affected by CVE-2021-47039?

CVE-2021-47039 affects Linux kernel versions from 5.11 to 5.11.21 and from 5.12 to 5.12.4.

What is the impact of CVE-2021-47039?

The impact of CVE-2021-47039 may include potential out of bounds access that could lead to memory corruption.

Is CVE-2021-47039 specific to certain distributions of Linux?

CVE-2021-47039 is a vulnerability in the Linux kernel, so it can impact any Linux distribution utilizing the affected kernel versions.

Vulnerability/
CVE-2021-47039

high

7.1

CWE

125

28/2/2024

9/1/2025

CVE-2021-47039: ataflop: potential out of bounds in do_format()

First published: Wed Feb 28 2024(Updated: )

In the Linux kernel, the following vulnerability has been resolved: ataflop: potential out of bounds in do_format() The function uses "type" as an array index: q = unit[drive].disk[type]->queue; Unfortunately the bounds check on "type" isn't done until later in the function. Fix this by moving the bounds check to the start.

Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Affected Software	Affected Version	How to fix
Linux Kernel	>=5.11<5.11.21
Linux Kernel	>=5.12<5.12.4

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-47039?
CVE-2021-47039 has been classified as a medium severity vulnerability affecting the Linux kernel.
How do I fix CVE-2021-47039?
To mitigate CVE-2021-47039, ensure that your Linux kernel is updated to version 5.11.21 or later, or version 5.12.4 or later.
Which versions of the Linux kernel are affected by CVE-2021-47039?
CVE-2021-47039 affects Linux kernel versions from 5.11 to 5.11.21 and from 5.12 to 5.12.4.
What is the impact of CVE-2021-47039?
The impact of CVE-2021-47039 may include potential out of bounds access that could lead to memory corruption.
Is CVE-2021-47039 specific to certain distributions of Linux?
CVE-2021-47039 is a vulnerability in the Linux kernel, so it can impact any Linux distribution utilizing the affected kernel versions.

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agent/references
agent/type
agent/first-publish-date
agent/description
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source/MITRE
agent/weakness
agent/last-modified-date
agent/severity
agent/remedy
agent/softwarecombine
agent/source
agent/tags
collector/nvd-api
source/NVD
agent/software-canonical-lookup
agent/software-canonical-lookup-request
vendor/linux
canonical/linux kernel
version/linux kernel/5.11
version/linux kernel/5.12

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Frequently Asked Questions

What is the severity of CVE-2021-47039?
CVE-2021-47039 has been classified as a medium severity vulnerability affecting the Linux kernel.
How do I fix CVE-2021-47039?
To mitigate CVE-2021-47039, ensure that your Linux kernel is updated to version 5.11.21 or later, or version 5.12.4 or later.
Which versions of the Linux kernel are affected by CVE-2021-47039?
CVE-2021-47039 affects Linux kernel versions from 5.11 to 5.11.21 and from 5.12 to 5.12.4.
What is the impact of CVE-2021-47039?
The impact of CVE-2021-47039 may include potential out of bounds access that could lead to memory corruption.
Is CVE-2021-47039 specific to certain distributions of Linux?
CVE-2021-47039 is a vulnerability in the Linux kernel, so it can impact any Linux distribution utilizing the affected kernel versions.

CVE-2021-47039: ataflop: potential out of bounds in do_format()

Remedy

Remedy

Remedy

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-47039?

How do I fix CVE-2021-47039?

Which versions of the Linux kernel are affected by CVE-2021-47039?

What is the impact of CVE-2021-47039?

Is CVE-2021-47039 specific to certain distributions of Linux?

Company

Resources

Contact

Frequently Asked Questions

What is the severity of CVE-2021-47039?

How do I fix CVE-2021-47039?

Which versions of the Linux kernel are affected by CVE-2021-47039?

What is the impact of CVE-2021-47039?

Is CVE-2021-47039 specific to certain distributions of Linux?