VDB-179815 · CVE-2021-36754 · GCVE-0-2021-36754

PowerDNS Authoritative Server 4.5.0 Query out-of-bounds

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in PowerDNS Authoritative Server 4.5.0. This impacts an unknown function of the component Query Handler. This manipulation causes out-of-bounds. This vulnerability is registered as CVE-2021-36754. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in PowerDNS Authoritative Server 4.5.0 (Domain Name Software) and classified as problematic. Affected by this vulnerability is some unknown processing of the component Query Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability.

The weakness was published 07/31/2021. It is possible to read the advisory at doc.powerdns.com. This vulnerability is known as CVE-2021-36754. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 4.5.1 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Domain Name Software

Vendor

PowerDNS

Name

Authoritative Server

Version

4.5.0

License

open-source

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Authoritative Server 4.5.1

Timelineinfo

07/15/2021 🔍
07/31/2021 +16 days 🔍
07/31/2021 +0 days 🔍
08/06/2021 +6 days 🔍

Sourcesinfo

Advisory: doc.powerdns.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-36754 (🔍)
GCVE (CVE): GCVE-0-2021-36754
GCVE (VulDB): GCVE-100-179815

Entryinfo

Created: 07/31/2021 21:12
Updated: 08/06/2021 08:41
Changes: 07/31/2021 21:12 (39), 08/06/2021 08:41 (3)
Complete: 🔍
Cache ID: 216::103