CVE-2022-50169: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: wil6210: debugfs: fix info leak in wil_write_file_wmi() The simple_write_to_buffer() function will succeed if even a single byte is initialized. However, we need to initialize the whole buffer to prevent information leaks. Just use memdup_user().

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CVSS v3.1 Score

7.1

HIGH

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

Weakness Type (CWE)

CWE-909 CWE-909

Affected Products

Vendor	Product	Versions
linux	linux_kernel	3.17 — 4.14.291
linux	linux_kernel	4.15 — 4.19.256
linux	linux_kernel	4.20 — 5.4.211
linux	linux_kernel	5.5 — 5.10.137
linux	linux_kernel	5.11 — 5.15.61
linux	linux_kernel	5.16 — 5.18.18
linux	linux_kernel	5.19 — 5.19.2

References

Advisories & Patches

https://git.kernel.org/stable/c/05ceda14ef7c73104e709c414c3680d8a59f51d4 https://git.kernel.org/stable/c/074e865b37da55aa87baa16d68b96896f85f8adb https://git.kernel.org/stable/c/4615458db7793fadc6d546ac3564b36819e77a22 https://git.kernel.org/stable/c/60c9983425167ec5073c628d83a6875760d18059 https://git.kernel.org/stable/c/67470920cd3f3cb38699b1ad23234f96bead4d21 https://git.kernel.org/stable/c/789edc1af9c1a2293956e8534bfef3d18d629de9 https://git.kernel.org/stable/c/7a4836560a6198d245d5732e26f94898b12eb760 https://git.kernel.org/stable/c/c1216e699a1ce83ea005510844bd7508d34c6cef

Frequently Asked Questions

What is CVE-2022-50169? +

In the Linux kernel, the following vulnerability has been resolved: wifi: wil6210: debugfs: fix info leak in wil_write_file_wmi() The simple_write_to_buffer() function will succeed if even a single byte is initialized. However, we need to initialize the whole buffer to prevent information leaks. Just use memdup_user(). It has a CVSS v3.1 base score of 7.1 (HIGH).

How severe is CVE-2022-50169? +

CVE-2022-50169 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2022-50169? +

CVE-2022-50169 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-2022-50169? +

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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