// For flags

CVE-2016-2120

 

Severity Score

6.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue has been found in PowerDNS Authoritative Server versions up to and including 3.4.10, 4.0.1 allowing an authorized user to crash the server by inserting a specially crafted record in a zone under their control then sending a DNS query for that record. The issue is due to an integer overflow when checking if the content of the record matches the expected size, allowing an attacker to cause a read past the buffer boundary.

Se ha encontrado un problema en PowerDNS Authoritative Server en versiones hasta (e incluyendo) las 3.4.10 y 4.0.1 que permite que un usuario provoque el cierre inesperado del servidor insertando un registro especialmente manipulado en una zona bajo su control para después enviar una consulta DNS hacia ese registro. El problema se debe a un desbordamiento de enteros al comprobar si el contenido del registro coincide con el tamaño esperado, lo que permite que un atacante lea tras los límites del búfer.

*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
Privileges Required
None
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
  • 2016-01-29 CVE Reserved
  • 2017-01-15 CVE Published
  • 2024-08-05 CVE Updated
  • 2024-09-10 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-190: Integer Overflow or Wraparound
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Powerdns
Search vendor "Powerdns"
 Authoritative
Search vendor "Powerdns" for product "Authoritative"
 <= 3.4.10
Search vendor "Powerdns" for product "Authoritative" and version " <= 3.4.10"
-
Affected
Powerdns
Search vendor "Powerdns"
 Authoritative
Search vendor "Powerdns" for product "Authoritative"
 >= 4.0.0 <= 4.0.1
Search vendor "Powerdns" for product "Authoritative" and version " >= 4.0.0 <= 4.0.1"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 8.0
Search vendor "Debian" for product "Debian Linux" and version "8.0"
-
Affected