// For flags

CVE-2021-3671

 

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A null pointer de-reference was found in the way samba kerberos server handled missing sname in TGS-REQ (Ticket Granting Server - Request). An authenticated user could use this flaw to crash the samba server.

Se ha encontrado una desreferencia de puntero null en la forma en que el servidor kerberos de Samba manejaba el sname faltante en TGS-REQ (Ticket Granting Server - Request). Un usuario autenticado podrĂ­a usar este fallo para bloquear el servidor samba

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-07-30 CVE Reserved
  • 2021-10-12 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-11-14 EPSS 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
Samba
Search vendor "Samba"
Samba
Search vendor "Samba" for product "Samba"
< 4.13.12
Search vendor "Samba" for product "Samba" and version " < 4.13.12"
-
Affected
Samba
Search vendor "Samba"
Samba
Search vendor "Samba" for product "Samba"
>= 4.14.0 < 4.14.8
Search vendor "Samba" for product "Samba" and version " >= 4.14.0 < 4.14.8"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
11.0
Search vendor "Debian" for product "Debian Linux" and version "11.0"
-
Affected
Netapp
Search vendor "Netapp"
Management Services For Element Software
Search vendor "Netapp" for product "Management Services For Element Software"
--
Affected
Netapp
Search vendor "Netapp"
Management Services For Netapp Hci
Search vendor "Netapp" for product "Management Services For Netapp Hci"
--
Affected
Netapp
Search vendor "Netapp"
Ontap Select Deploy Administration Utility
Search vendor "Netapp" for product "Ontap Select Deploy Administration Utility"
--
Affected