CVE-2023-53242: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: thermal/drivers/hisi: Drop second sensor hi3660 The commit 74c8e6bffbe1 ("driver core: Add __alloc_size hint to devm allocators") exposes a panic "BRK handler: Fatal exception" on the hi3660_thermal_probe funciton. This is because the function allocates memory for only one sensors array entry, but tries to fill up a second one. Fix this by removing the unneeded second access.

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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

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.20.1 — 5.4.235
linux	linux_kernel	5.5 — 5.10.173
linux	linux_kernel	5.11 — 5.15.99
linux	linux_kernel	5.16 — 6.1.16
linux	linux_kernel	6.2 — 6.2.3
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/15cc25829a97c3957e520e971868aacc84341317 https://git.kernel.org/stable/c/3cf2181e438f43ed24e12424fe36d156cca233b9 https://git.kernel.org/stable/c/68e675a9b69cfc34dd915d91a4650e3ee53421f4 https://git.kernel.org/stable/c/9f6756cd09889c7201ee31e6f76fbd914fb0b80d https://git.kernel.org/stable/c/e02bc492883abf751fd1a8d89fc025fbce6744c6 https://git.kernel.org/stable/c/f5aaf140ab1c02889c088e1b1098adad600541af

Frequently Asked Questions

What is CVE-2023-53242? +

In the Linux kernel, the following vulnerability has been resolved: thermal/drivers/hisi: Drop second sensor hi3660 The commit 74c8e6bffbe1 ("driver core: Add __alloc_size hint to devm allocators") exposes a panic "BRK handler: Fatal exception" on the hi3660_thermal_probe funciton. This is because the function allocates memory for only one sensors array entry, but tries to fill up a second one. Fix this by removing the unneeded second access. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-53242? +

CVE-2023-53242 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-2023-53242? +

CVE-2023-53242 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-2023-53242? +

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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