// For flags

CVE-2019-12455

 

Severity Score

5.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in sunxi_divs_clk_setup in drivers/clk/sunxi/clk-sunxi.c in the Linux kernel through 5.1.5. There is an unchecked kstrndup of derived_name, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). NOTE: This id is disputed as not being an issue because “The memory allocation that was not checked is part of a code that only runs at boot time, before user processes are started. Therefore, there is no possibility for an unprivileged user to control it, and no denial of service.”

** EN DISPUTA ** Se descubrió un problema en sunxi_divs_clk_setup en drivers / clk / sunxi / clk-sunxi.c en el kernel de Linux hasta la versión 5.1.5. Existe una kstrndup no verificada de derived_name, que podría permitir a un atacante provocar una denegación de servicio (desreferencia de puntero NULL y bloqueo del sistema). NOTA: Esta identificación se disputa por no ser un problema porque “La asignación de memoria que no se verificó es parte de un código que solo se ejecuta en el momento del arranque, antes de que se inicien los procesos del usuario. Por lo tanto, no hay posibilidad de que un usuario no privilegiado lo controle, y no se le niega el servicio ".

*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
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-05-29 CVE Reserved
  • 2019-05-30 CVE Published
  • 2024-05-23 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-476: NULL Pointer Dereference
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"
 <= 5.1.5
Search vendor "Linux" for product "Linux Kernel" and version " <= 5.1.5"
-
Affected