CVE-2023-53015: linux kernel Null Dereference — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: HID: betop: check shape of output reports betopff_init() only checks the total sum of the report counts for each report field to be at least 4, but hid_betopff_play() expects 4 report fields. A device advertising an output report with one field and 4 report counts would pass the check but crash the kernel with a NULL pointer dereference in hid_betopff_play().

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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	4.0 — 4.14.305
linux	linux_kernel	4.15 — 4.19.272
linux	linux_kernel	4.20 — 5.4.231
linux	linux_kernel	5.5 — 5.10.166
linux	linux_kernel	5.11 — 5.15.91
linux	linux_kernel	5.16 — 6.1.9
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/07bc32e53c7bd5c91472cc485231ef6274db9b76 https://git.kernel.org/stable/c/1a2a47b85cab50a3c146731bfeaf2d860f5344ee https://git.kernel.org/stable/c/28fc6095da22dc88433d79578ae1c495ebe8ca43 https://git.kernel.org/stable/c/3782c0d6edf658b71354a64d60aa7a296188fc90 https://git.kernel.org/stable/c/7317326f685824c7c29bd80841fd18041af6bb73 https://git.kernel.org/stable/c/d3065cc56221d1a5eda237e94eaf2a627b88ab79 https://git.kernel.org/stable/c/dbab4dba400d6ea9a9697fbbd287adbf7db1dac4

Frequently Asked Questions

What is CVE-2023-53015? +

In the Linux kernel, the following vulnerability has been resolved: HID: betop: check shape of output reports betopff_init() only checks the total sum of the report counts for each report field to be at least 4, but hid_betopff_play() expects 4 report fields. A device advertising an output report with one field and 4 report counts would pass the check but crash the kernel with a NULL pointer dereference in hid_betopff_play(). It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-53015? +

CVE-2023-53015 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-2023-53015? +

CVE-2023-53015 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-2023-53015? +

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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