What is the severity of CVE-2022-40307?

CVE-2022-40307 is classified as a medium severity vulnerability due to the potential for a use-after-free condition in the Linux kernel.

How do I fix CVE-2022-40307?

To fix CVE-2022-40307, update the Linux kernel to a version newer than 5.19.8 or apply the appropriate patches provided by your Linux distribution.

Which versions of the Linux kernel are affected by CVE-2022-40307?

CVE-2022-40307 affects the Linux kernel versions up to and including 5.19.8.

Is Debian Linux affected by CVE-2022-40307?

Yes, Debian Linux versions 10.0 and 11.0 are vulnerable to CVE-2022-40307 before applying the necessary updates.

What is a use-after-free vulnerability in CVE-2022-40307?

A use-after-free vulnerability occurs when a program continues to use a memory location after it has been freed, potentially leading to arbitrary code execution.

Vulnerability/
CVE-2022-40307

medium

4.7

CWE

362 416

9/9/2022

21/11/2024

CVE-2022-40307: Race Condition

First published: Fri Sep 09 2022(Updated: )

An issue was discovered in the Linux kernel through 5.19.8. drivers/firmware/efi/capsule-loader.c has a race condition with a resultant use-after-free.

Credit: cve@mitre.org cve@mitre.org

Affected Software	Affected Version	How to fix
Linux Kernel	<=5.19.8
Debian Debian Linux	=10.0
Debian Debian Linux	=11.0
debian/linux		5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.11-1 6.12.12-1

Remedy

https://github.com/torvalds/linux/commit/9cb636b5f6a8cc6d1b50809ec8f8d33ae0c84c95

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2022-40307?
CVE-2022-40307 is classified as a medium severity vulnerability due to the potential for a use-after-free condition in the Linux kernel.
How do I fix CVE-2022-40307?
To fix CVE-2022-40307, update the Linux kernel to a version newer than 5.19.8 or apply the appropriate patches provided by your Linux distribution.
Which versions of the Linux kernel are affected by CVE-2022-40307?
CVE-2022-40307 affects the Linux kernel versions up to and including 5.19.8.
Is Debian Linux affected by CVE-2022-40307?
Yes, Debian Linux versions 10.0 and 11.0 are vulnerable to CVE-2022-40307 before applying the necessary updates.
What is a use-after-free vulnerability in CVE-2022-40307?
A use-after-free vulnerability occurs when a program continues to use a memory location after it has been freed, potentially leading to arbitrary code execution.

agent/type
agent/first-publish-date
collector/launchpad-cve
source/Launchpad
agent/author
agent/severity
agent/weakness
collector/mitre-cve
source/MITRE
collector/usn-cve
source/Ubuntu
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agent/software-canonical-lookup
agent/software-canonical-lookup-request
collector/nvd-index
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collector/security-tracker-debian
source/Debian
vendor/linux
canonical/linux kernel
version/linux kernel/5.19.8
vendor/debian
canonical/debian debian linux
version/debian debian linux/10.0
version/debian debian linux/11.0
package-manager/debian

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Frequently Asked Questions

What is the severity of CVE-2022-40307?
CVE-2022-40307 is classified as a medium severity vulnerability due to the potential for a use-after-free condition in the Linux kernel.
How do I fix CVE-2022-40307?
To fix CVE-2022-40307, update the Linux kernel to a version newer than 5.19.8 or apply the appropriate patches provided by your Linux distribution.
Which versions of the Linux kernel are affected by CVE-2022-40307?
CVE-2022-40307 affects the Linux kernel versions up to and including 5.19.8.
Is Debian Linux affected by CVE-2022-40307?
Yes, Debian Linux versions 10.0 and 11.0 are vulnerable to CVE-2022-40307 before applying the necessary updates.
What is a use-after-free vulnerability in CVE-2022-40307?
A use-after-free vulnerability occurs when a program continues to use a memory location after it has been freed, potentially leading to arbitrary code execution.