CVE-2023-52459: linux kernel Null Dereference — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: media: v4l: async: Fix duplicated list deletion The list deletion call dropped here is already called from the helper function in the line before. Having a second list_del() call results in either a warning (with CONFIG_DEBUG_LIST=y): list_del corruption, c46c8198->next is LIST_POISON1 (00000100) If CONFIG_DEBUG_LIST is disabled the operation results in a kernel error due to NULL pointer dereference.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
linux	linux_kernel	6.6.0 — 6.6.14
linux	linux_kernel	6.7.0 — 6.7.2

References

Advisories & Patches

https://git.kernel.org/stable/c/3de6ee94aae701fa949cd3b5df6b6a440ddfb8f2 https://git.kernel.org/stable/c/49d82811428469566667f22749610b8c132cdb3e https://git.kernel.org/stable/c/b7062628caeaec90e8f691ebab2d70f31b7b6b91 https://git.kernel.org/stable/c/3de6ee94aae701fa949cd3b5df6b6a440ddfb8f2 https://git.kernel.org/stable/c/49d82811428469566667f22749610b8c132cdb3e https://git.kernel.org/stable/c/b7062628caeaec90e8f691ebab2d70f31b7b6b91

Frequently Asked Questions

What is CVE-2023-52459? +

In the Linux kernel, the following vulnerability has been resolved: media: v4l: async: Fix duplicated list deletion The list deletion call dropped here is already called from the helper function in the line before. Having a second list_del() call results in either a warning (with CONFIG_DEBUG_LIST=y): list_del corruption, c46c8198->next is LIST_POISON1 (00000100) If CONFIG_DEBUG_LIST is disabled the operation results in a kernel error due to NULL pointer dereference. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-52459? +

CVE-2023-52459 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-52459? +

CVE-2023-52459 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-52459? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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