CVE-2020-17482

Ubuntu Security Notice USN-7203-1

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue has been found in PowerDNS Authoritative Server before 4.3.1 where an authorized user with the ability to insert crafted records into a zone might be able to leak the content of uninitialized memory.

Se ha encontrado un problema en PowerDNS Authoritative Server versiones anteriores a 4.3.1, donde un usuario autorizado con la capacidad de insertar registros diseñados en una zona podría filtrar el contenido de la memoria no inicializada

Wei Hao discovered that PowerDNS Authoritative Server incorrectly handled memory when accessing certain files. An attacker could possibly use this issue to achieve arbitrary code execution. It was discovered that PowerDNS Authoritative Server and PowerDNS Recursor incorrectly handled memory when receiving certain remote input. An attacker could possibly use this issue to cause denial of service. Kees Monshouwer discovered that PowerDNS Authoritative Server and PowerDNS Recursor incorrectly handled request validation after having cached malformed input. An attacker could possibly use this issue to cause denial of service.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-08-11 CVE Reserved
2020-10-02 CVE Published
2024-08-04 CVE Updated
2025-06-12 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-908: Use of Uninitialized Resource

CAPEC

References (3)

URL	Tag	Source
https://github.com/PowerDNS/pdns	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2020-05.html	2022-01-01
https://security.gentoo.org/glsa/202012-18	2022-01-01

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"				< 4.3.1 Search vendor "Powerdns" for product "Authoritative" and version " < 4.3.1"		-		Affected