CVE-2025-38501: debian linux DoS — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: limit repeated connections from clients with the same IP Repeated connections from clients with the same IP address may exhaust the max connections and prevent other normal client connections. This patch limit repeated connections from clients with the same IP.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.15 — 6.1.148
linux	linux_kernel	6.2 — 6.6.102
linux	linux_kernel	6.7 — 6.12.42
linux	linux_kernel	6.13 — 6.15.10
linux	linux_kernel	6.16 — 6.16.1
debian	debian_linux	All

References

Advisories & Patches

https://git.kernel.org/stable/c/6073afe64510c302b7a0683a01e32c012eff715d https://git.kernel.org/stable/c/7e5d91d3e6c62a9755b36f29c35288f06c3cd86b https://git.kernel.org/stable/c/cb092fc3a62972a4aa47c9fe356c2c6a01cd840b https://git.kernel.org/stable/c/e6bb9193974059ddbb0ce7763fa3882bd60d4dc3 https://git.kernel.org/stable/c/f1ce9258bcbce2491f9f71f7882b6eed0b33ec65 https://git.kernel.org/stable/c/fa1c47af4ff641cf9197ecdb1f8240cbb30389c1

Other References

http://www.openwall.com/lists/oss-security/2025/09/15/2 https://github.com/keymaker-arch/KSMBDrain https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

Frequently Asked Questions

What is CVE-2025-38501? +

In the Linux kernel, the following vulnerability has been resolved: ksmbd: limit repeated connections from clients with the same IP Repeated connections from clients with the same IP address may exhaust the max connections and prevent other normal client connections. This patch limit repeated connections from clients with the same IP. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-38501? +

CVE-2025-38501 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-38501? +

CVE-2025-38501 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-2025-38501? +

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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