// For flags

CVE-2025-38497

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

Severity Score

5.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: gadget: configfs: Corrección de lectura OOB en escritura de cadena vacía. Al escribir una cadena vacía en los atributos sysfs 'qw_sign' o 'landingPage', las funciones de almacenamiento intentan acceder a page[l - 1] antes de validar que la longitud 'l' sea mayor que cero. Este parche corrige la vulnerabilidad añadiendo una comprobación al inicio de os_desc_qw_sign_store() y webusb_landingPage_store() para gestionar correctamente la entrada de longitud cero, retornando inmediatamente.

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.

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. For the stable distribution (trixie), these problems have been fixed in version 6.12.41-1.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2025-04-16 CVE Reserved
  • 2025-07-28 CVE Published
  • 2025-08-28 CVE Updated
  • 2025-08-29 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 5.4.297
Search vendor "Linux" for product "Linux Kernel" and version " < 5.4.297"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 5.10.241
Search vendor "Linux" for product "Linux Kernel" and version " < 5.10.241"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 5.15.190
Search vendor "Linux" for product "Linux Kernel" and version " < 5.15.190"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 6.1.147
Search vendor "Linux" for product "Linux Kernel" and version " < 6.1.147"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 6.6.100
Search vendor "Linux" for product "Linux Kernel" and version " < 6.6.100"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 6.12.40
Search vendor "Linux" for product "Linux Kernel" and version " < 6.12.40"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 6.15.8
Search vendor "Linux" for product "Linux Kernel" and version " < 6.15.8"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 6.16
Search vendor "Linux" for product "Linux Kernel" and version " < 6.16"
en
Affected