CVE-2023-53748
Unknown Unknown - Not Provided

BaseFortify

Publication date: 2025-12-08

Last updated on: 2025-12-08

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: Fix potential array out-of-bounds in decoder queue_setup variable *nplanes is provided by user via system call argument. The possible value of q_data->fmt->num_planes is 1-3, while the value of *nplanes can be 1-8. The array access by index i can cause array out-of-bounds. Fix this bug by checking *nplanes against the array size.

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Meta Information

Published
2025-12-08
Last Modified
2025-12-08
Generated
2026-07-06
AI Q&A
2025-12-08
EPSS Evaluated
2026-07-05
NVD
CVE-2023-53748

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mediatek vcodec *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is a potential array out-of-bounds issue in the MediaTek video codec driver in the Linux kernel. It occurs because a variable representing the number of planes (*nplanes) is provided by the user and can have a value between 1 and 8, while the expected number of planes in the format is between 1 and 3. This mismatch can cause the code to access an array beyond its valid range, leading to undefined behavior or crashes. The issue was fixed by adding a check to ensure *nplanes does not exceed the array size.

Impact Analysis

This vulnerability can lead to out-of-bounds memory access in the Linux kernel's MediaTek video codec driver, which may cause system instability, crashes, or potentially allow an attacker to execute arbitrary code or escalate privileges if exploited. The impact depends on whether the vulnerable driver is used and if an attacker can supply crafted input to trigger the issue.

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