CVE-2023-52888: linux kernel Double Free — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: Only free buffer VA that is not NULL In the MediaTek vcodec driver, while mtk_vcodec_mem_free() is mostly called only when the buffer to free exists, there are some instances that didn't do the check and triggered warnings in practice. We believe those checks were forgotten unintentionally. Add the checks back to fix the warnings.

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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-415 CWE-415

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.10 — 6.6.39
linux	linux_kernel	6.7 — 6.9.9

References

Advisories & Patches

https://git.kernel.org/stable/c/303d01082edaf817ee2df53a40dca9da637a2c04 https://git.kernel.org/stable/c/5c217253c76c94f76d1df31d0bbdcb88dc07be91 https://git.kernel.org/stable/c/eb005c801ec70ff4307727bd3bd6e8280169ef32 https://git.kernel.org/stable/c/303d01082edaf817ee2df53a40dca9da637a2c04 https://git.kernel.org/stable/c/5c217253c76c94f76d1df31d0bbdcb88dc07be91 https://git.kernel.org/stable/c/eb005c801ec70ff4307727bd3bd6e8280169ef32

Frequently Asked Questions

What is CVE-2023-52888? +

In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: Only free buffer VA that is not NULL In the MediaTek vcodec driver, while mtk_vcodec_mem_free() is mostly called only when the buffer to free exists, there are some instances that didn't do the check and triggered warnings in practice. We believe those checks were forgotten unintentionally. Add the checks back to fix the warnings. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-52888? +

CVE-2023-52888 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-2023-52888? +

CVE-2023-52888 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-2023-52888? +

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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