CVE-2025-38068
HIGH severity · CVSS 7.8 · Out-of-bounds write
7.8CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/0acdc4d6e679ba31d01e3e7e2e4124b76d6d8e2a ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/0acdc4d6e679ba31d01e3e7e2e4124b76d6d8e2aPatch
- https://git.kernel.org/stable/c/167373d77c70c2b558aae3e327b115249bb2652cPatch
- https://git.kernel.org/stable/c/4b173bb2c4665c23f8fcf5241c7b06dfa6b5b111Patch
- https://git.kernel.org/stable/c/7caad075acb634a74911830d6386c50ea12566cdPatch
- https://git.kernel.org/stable/c/a98bd864e16f91c70b2469adf013d713d04d1d13Patch
- https://git.kernel.org/stable/c/cc47f07234f72cbd8e2c973cdbf2a6730660a463Patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlAdvisory