CVE-2025-22038

medium

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate zero num_subauth before sub_auth is accessed Access psid->sub_auth[psid->num_subauth - 1] without checking if num_subauth is non-zero leads to an out-of-bounds read. This patch adds a validation step to ensure num_subauth != 0 before sub_auth is accessed.

References

https://git.kernel.org/stable/c/c8bfe1954a0b89e7b29b3a3e7f4c5e0ebd295e20

https://git.kernel.org/stable/c/bf21e29d78cd2c2371023953d9c82dfef82ebb36

https://git.kernel.org/stable/c/68c6c3142bfcdb049839d40a9a59ebe8ea865002

https://git.kernel.org/stable/c/56de7778a48560278c334077ace7b9ac4bfb2fd1

https://git.kernel.org/stable/c/3ac65de111c686c95316ade660f8ba7aea3cd3cc

https://git.kernel.org/stable/c/0e36a3e080d6d8bd7a34e089345d043da4ac8283

Details

Source: Mitre, NVD

Published: 2025-04-16

Updated: 2025-04-17

Risk Information

CVSS v2

Base Score: 5.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00024