CVE-2025-38403: debian linux — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: Clear the vmci transport packet properly when initializing it In vmci_transport_packet_init memset the vmci_transport_packet before populating the fields to avoid any uninitialised data being left in the structure.

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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

Affected Products

Vendor	Product	Versions
linux	linux_kernel	3.9 — 5.4.296
linux	linux_kernel	5.5 — 5.10.240
linux	linux_kernel	5.11 — 5.15.187
linux	linux_kernel	5.16 — 6.1.144
linux	linux_kernel	6.2 — 6.6.97
linux	linux_kernel	6.7 — 6.12.37
linux	linux_kernel	6.13 — 6.15.6
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
debian	debian_linux	All

References

Advisories & Patches

https://git.kernel.org/stable/c/0a01021317375b8d1895152f544421ce49299eb1 https://git.kernel.org/stable/c/19c2cc01ff9a8031398a802676ffb0f4692dd95d https://git.kernel.org/stable/c/1c1bcb0e78230f533b4103e8cf271d17c3f469f0 https://git.kernel.org/stable/c/223e2288f4b8c262a864e2c03964ffac91744cd5 https://git.kernel.org/stable/c/2d44723a091bc853272e1a51a488a3d22b80be5e https://git.kernel.org/stable/c/75705b44e0b9aaa74f4c163d93d388bcba9e386a https://git.kernel.org/stable/c/94d0c326cb3ee6b0f8bd00e209550b93fcc5c839 https://git.kernel.org/stable/c/e9a673153d578fd439919a24e99851b2f87ecbce

Other References

https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

Frequently Asked Questions

What is CVE-2025-38403? +

In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: Clear the vmci transport packet properly when initializing it In vmci_transport_packet_init memset the vmci_transport_packet before populating the fields to avoid any uninitialised data being left in the structure. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-38403? +

CVE-2025-38403 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-2025-38403? +

CVE-2025-38403 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-2025-38403? +

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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CVE-2025-38403