// For flags

CVE-2024-38541

of: module: add buffer overflow check in of_modalias()

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

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

of: module: add buffer overflow check in of_modalias()

In of_modalias(), if the buffer happens to be too small even for the 1st
snprintf() call, the len parameter will become negative and str parameter
(if not NULL initially) will point beyond the buffer's end. Add the buffer
overflow check after the 1st snprintf() call and fix such check after the
strlen() call (accounting for the terminating NUL char).

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: of: módulo: agregar control de desbordamiento del búfer of_modalias() En of_modalias(), si el búfer es demasiado pequeño incluso para la primera llamada a snprintf(), el parámetro len se vuelve negativo y el parámetro str (si no es NULL inicialmente) apuntará más allá del final del búfer. Agregue la verificación de desbordamiento del búfer después de la primera llamada a snprintf() y corrija dicha verificación después de la llamada strlen() (teniendo en cuenta el carácter NUL de terminación).

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2024-06-18 CVE Reserved
  • 2024-06-19 CVE Published
  • 2024-06-20 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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"
 >= 4.14 < 6.6.33
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 6.6.33"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.14 < 6.8.12
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 6.8.12"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.14 < 6.9.3
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 6.9.3"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.14 < 6.10
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 6.10"
en
Affected