🛡️ CVE-2025-38497 — debian-linux

🟠 CVSS 7.1 — High ✅ No Known Exploit CWE-125 NVD

7.1

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

usb: gadget: configfs: Fix OOB read on empty string write

In the Linux kernel, the following vulnerability has been resolved:

usb: gadget: configfs: Fix OOB read on empty string write

When writing an empty string to either 'qw_sign' or 'landingPage'

sysfs attributes, the store functions attempt to access page[l - 1]

before validating that the length 'l' is greater than zero.

This patch fixes the vulnerability by adding a check at the beginning

of os_desc_qw_sign_store() and webusb_landingPage_store() to handle

the zero-length input case gracefully by returning immediately.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability high.

Weakness class

CVE-2025-38497 is classified as CWE-125: Out-of-bounds Read. The code reads past the limits of a buffer, exposing adjacent memory contents or crashing the process.

Affected software

CVE-2025-38497 is recorded against 3 packages.

debian-linux
kernel (from 6.13.0 up to 6.15.8)
linux-kernel

Timeline and source

Published on 28 July 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
lists.debian.org
lists.debian.org

CVE-2025-38497 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

BellSoft Debian Debian 11 (Root.io)Debian 12 (Root.io)Ubuntu 22.04 (Root.io)Ubuntu 24.04 (Root.io)Ubuntu

Details

Severity HIGH

CVSS Score 7.1

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

CWE CWE-125

Public Exploit ✅ No

Source NVD

Published 2025-07-28

Updated 2026-08-20

Modified 2026-06-17

Fix URL https://git.kernel.org/stable/c/15a87206879951712915c03c8952a73d6a74721e

Affected Packages

Software	From version	Fixed in
debian-linux	—	—
kernel	6.13.0	6.15.8
linux-kernel	—	—

References

Patch https://git.kernel.org/stable/c/15a87206879951712915c03c8952a73d6a74721e

Patch https://git.kernel.org/stable/c/22b7897c289cc25d99c603f5144096142a30d897

Patch https://git.kernel.org/stable/c/2798111f8e504ac747cce911226135d50b8de468

Patch https://git.kernel.org/stable/c/3014168731b7930300aab656085af784edc861f6

Patch https://git.kernel.org/stable/c/58bdd5160184645771553ea732da5c2887fc9bd1

Patch https://git.kernel.org/stable/c/783ea37b237a9b524f1e5ca018ea17d772ee0ea0

Patch https://git.kernel.org/stable/c/78b41148cfea2a3f04d87adf3a71b21735820a37

Patch https://git.kernel.org/stable/c/d68b7c8fefbaeae8f065b84e40cf64baf4cc0c76

Third Party Advisory https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html

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

🔗 NVD 🔗 Mitre ✅ Fix / Advisory

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