// For flags

CVE-2018-14619

kernel: crash (possible privesc) in kernel crypto api.

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A flaw was found in the crypto subsystem of the Linux kernel before version kernel-4.15-rc4. The "null skcipher" was being dropped when each af_alg_ctx was freed instead of when the aead_tfm was freed. This can cause the null skcipher to be freed while it is still in use leading to a local user being able to crash the system or possibly escalate privileges.

Se ha encontrado un error en el subsistema crypto del kernel de Linux en versiones anteriores a kernel-4.15-rc4. Se dejó "null skcipher" cuando se liberó cada af_alg_ctx en lugar de cuando se liberó aead_tfm. Esto puede provocar la liberación del skcipher null mientras sigue en uso, lo que conduce a que un usuario local sea capaz de provocar el cierre inesperado del sistema o un posible escalado de privilegios.

A flaw was found in the crypto subsystem that allowed an attacker
to crash the system or possibly escalate privileges with a specially crafted program.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-07-27 CVE Reserved
  • 2018-08-30 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
  • CWE-416: Use After Free
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 < 4.14.8
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 4.14.8"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
4.15
Search vendor "Linux" for product "Linux Kernel" and version "4.15"
rc1
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
4.15
Search vendor "Linux" for product "Linux Kernel" and version "4.15"
rc2
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
4.15
Search vendor "Linux" for product "Linux Kernel" and version "4.15"
rc3
Affected