// For flags

CVE-2017-17053

 

Severity Score

7.0
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The init_new_context function in arch/x86/include/asm/mmu_context.h in the Linux kernel before 4.12.10 does not correctly handle errors from LDT table allocation when forking a new process, allowing a local attacker to achieve a use-after-free or possibly have unspecified other impact by running a specially crafted program. This vulnerability only affected kernels built with CONFIG_MODIFY_LDT_SYSCALL=y.

La función init_new_context en arch/x86/include/asm/mmu_context.h en el kernel de Linux en versiones anteriores a la 4.12.10 no gestiona errores de asignación de tablas LDT al bifurcar un nuevo proceso. Esto permite que un atacante local logre un uso de memoria previamente liberada o que, posiblemente, tenga otro impacto sin especificar ejecutando un programa especialmente manipulado. Esta vulnerabilidad solo afecta a los kernels construidos con CONFIG_MODIFY_LDT_SYSCALL=y.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2017-11-28 CVE Reserved
  • 2017-11-29 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • 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"
 >= 4.4.144 < 4.4.153
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.4.144 < 4.4.153"
-
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.6 < 4.9.46
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.6 < 4.9.46"
-
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.10 < 4.12.10
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.10 < 4.12.10"
-
Affected