National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-2120 Detail

Current Description

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.

Source:  MITRE
Description Last Modified:  11/01/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.5 MEDIUM
Vector: AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 2.8


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 4.0 MEDIUM
Vector: (AV:N/AC:L/Au:S/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): Single
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2120 Issue Tracking Third Party Advisory
https://www.debian.org/security/2017/dsa-3764 Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Integer Overflow or Wraparound (CWE-190)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/a:powerdns:authoritative
     Show Matching CPE(s)
Up to (including)
3.4.10
 cpe:/a:powerdns:authoritative
     Show Matching CPE(s)
From (including)
4.0.0
Up to (including)
4.0.1

Configuration 2 ( hide )
 cpe:/o:debian:debian_linux:8.0
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-2120
NVD Published Date:
11/01/2018
NVD Last Modified:
01/29/2019