CVE-2025-38068: debian linux Memory Corruption — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: lzo - Fix compression buffer overrun Unlike the decompression code, the compression code in LZO never checked for output overruns. It instead assumes that the caller always provides enough buffer space, disregarding the buffer length provided by the caller. Add a safe compression interface that checks for the end of buffer before each write. Use the safe interface in crypto/lzo.

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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

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
linux	linux_kernel	< 5.15.185
linux	linux_kernel	5.16 — 6.1.141
linux	linux_kernel	6.2 — 6.6.93
linux	linux_kernel	6.7 — 6.12.31
linux	linux_kernel	6.13 — 6.14.9
debian	debian_linux	All

References

Advisories & Patches

https://git.kernel.org/stable/c/0acdc4d6e679ba31d01e3e7e2e4124b76d6d8e2a https://git.kernel.org/stable/c/167373d77c70c2b558aae3e327b115249bb2652c https://git.kernel.org/stable/c/4b173bb2c4665c23f8fcf5241c7b06dfa6b5b111 https://git.kernel.org/stable/c/7caad075acb634a74911830d6386c50ea12566cd https://git.kernel.org/stable/c/a98bd864e16f91c70b2469adf013d713d04d1d13 https://git.kernel.org/stable/c/cc47f07234f72cbd8e2c973cdbf2a6730660a463

Other References

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

Frequently Asked Questions

What is CVE-2025-38068? +

In the Linux kernel, the following vulnerability has been resolved: crypto: lzo - Fix compression buffer overrun Unlike the decompression code, the compression code in LZO never checked for output overruns. It instead assumes that the caller always provides enough buffer space, disregarding the buffer length provided by the caller. Add a safe compression interface that checks for the end of buffer before each write. Use the safe interface in crypto/lzo. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-38068? +

CVE-2025-38068 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-2025-38068? +

CVE-2025-38068 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-2025-38068? +

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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