// For flags

CVE-2019-20427

 

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In the Lustre file system before 2.12.3, the ptlrpc module has a buffer overflow and panic, and possibly remote code execution, due to the lack of validation for specific fields of packets sent by a client. Interaction between req_capsule_get_size and tgt_brw_write leads to a tgt_shortio2pages integer signedness error.

En el sistema de archivos de Luster versiones anteriores versiones hasta 2.12.3, el módulo ptlrpc presenta un desbordamiento del búfer y un pánico, y posiblemente una ejecución de código remota, debido a la falta de comprobación para campos de paquetes específicos enviados mediante un cliente. La interacción entre las funciones req_capsule_get_size y tgt_brw_write conlleva a un error de la propiedad signedness de enteros de tgt_shortio2pages.

*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
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-01-27 CVE Reserved
  • 2020-01-27 CVE Published
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • 2024-12-18 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
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
Lustre
Search vendor "Lustre"
Lustre
Search vendor "Lustre" for product "Lustre"
< 2.12.3
Search vendor "Lustre" for product "Lustre" and version " < 2.12.3"
-
Affected