CVE-2024-53203: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: usb: typec: fix potential array underflow in ucsi_ccg_sync_control() The "command" variable can be controlled by the user via debugfs. The worry is that if con_index is zero then "&uc->ucsi->connector[con_index - 1]" would be an array underflow.

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CVSS v3.1 Score

7.8

HIGH

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

Weakness Type (CWE)

CWE-129 CWE-129

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.6 — 6.11.11
linux	linux_kernel	6.12 — 6.12.2

References

Advisories & Patches

https://git.kernel.org/stable/c/56971710cd541f2f05160a84b3183477d34a1be9 https://git.kernel.org/stable/c/e56aac6e5a25630645607b6856d4b2a17b2311a5 https://git.kernel.org/stable/c/ef92cd55289a282910575c5b9d87f646f2d39b38

Other References

https://git.kernel.org/stable/c/0e66fd8e5a2e45c7dacfc9178ba702153f4a61a8 https://git.kernel.org/stable/c/627c2a5056aba42a8a96a8fffe8996aeccf919a9 https://git.kernel.org/stable/c/e15fd96c0b701c53f9006bcc836eaeb35a05a023 https://git.kernel.org/stable/c/e44189455c62469eb91d383ce9103d54c1f807a3 https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html

Frequently Asked Questions

What is CVE-2024-53203? +

In the Linux kernel, the following vulnerability has been resolved: usb: typec: fix potential array underflow in ucsi_ccg_sync_control() The "command" variable can be controlled by the user via debugfs. The worry is that if con_index is zero then "&uc->ucsi->connector[con_index - 1]" would be an array underflow. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-53203? +

CVE-2024-53203 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-53203? +

CVE-2024-53203 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-2024-53203? +

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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