// For flags

CVE-2011-4110

kernel: keys: NULL pointer deref in the user-defined key type

Severity Score

2.1
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The user_update function in security/keys/user_defined.c in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and kernel oops) via vectors related to a user-defined key and "updating a negative key into a fully instantiated key."

La función user_update security/keys/user_defined.c en el kernel de Linux v2.6 permite a usuarios locales provocar una denegación de servicio (desreferencia de puntero a NULL y fallo del kernel) a través de vectores relacionados con una clave definida por el usuario y la "actualización de una clave negativa en una clave completamente instanciada".

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
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
  • 2011-10-18 CVE Reserved
  • 2011-11-30 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-07 CVE Updated
  • 2024-08-07 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-264: Permissions, Privileges, and Access Controls
  • 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"
 2.6
Search vendor "Linux" for product "Linux Kernel" and version "2.6"
-
Affected