CVE-2025-23156: debian linux Out-of-bounds Read — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: media: venus: hfi_parser: refactor hfi packet parsing logic words_count denotes the number of words in total payload, while data points to payload of various property within it. When words_count reaches last word, data can access memory beyond the total payload. This can lead to OOB access. With this patch, the utility api for handling individual properties now returns the size of data consumed. Accordingly remaining bytes are calculated before parsing the payload, thereby eliminates the OOB access possibilities.

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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-125 Out-of-bounds Read

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.19 — 5.10.237
linux	linux_kernel	5.11 — 5.15.181
linux	linux_kernel	5.16 — 6.1.135
linux	linux_kernel	6.2 — 6.6.88
linux	linux_kernel	6.7 — 6.12.24
linux	linux_kernel	6.13 — 6.13.12
linux	linux_kernel	6.14 — 6.14.3
debian	debian_linux	All

References

Advisories & Patches

https://git.kernel.org/stable/c/05b07e52a0d08239147ba3460045855f4fb398de https://git.kernel.org/stable/c/0beabe9b49190a02321b02792b29fc0f0e28b51f https://git.kernel.org/stable/c/0f9a4bab7d83738963365372e4745854938eab2d https://git.kernel.org/stable/c/6d278c5548d840c4d85d445347b2a5c31b2ab3a0 https://git.kernel.org/stable/c/9edaaa8e3e15aab1ca413ab50556de1975bcb329 https://git.kernel.org/stable/c/a736c72d476d1c7ca7be5018f2614ee61168ad01 https://git.kernel.org/stable/c/bb3fd8b7906a12dc2b61389abb742bf6542d97fb https://git.kernel.org/stable/c/f195e94c7af921d99abd79f57026a218d191d2c7

Other References

https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

Frequently Asked Questions

What is CVE-2025-23156? +

In the Linux kernel, the following vulnerability has been resolved: media: venus: hfi_parser: refactor hfi packet parsing logic words_count denotes the number of words in total payload, while data points to payload of various property within it. When words_count reaches last word, data can access memory beyond the total payload. This can lead to OOB access. With this patch, the utility api for handling individual properties now returns the size of data consumed. Accordingly remaining bytes are calculated before parsing the payload, thereby eliminates the OOB access possibilities. It has a CVSS v3.1 base score of 7.1 (HIGH).

How severe is CVE-2025-23156? +

CVE-2025-23156 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-2025-23156? +

CVE-2025-23156 affects products from debian, linux, specifically: debian_linux, linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-23156? +

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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