Vulnerability CVE-2016-2120


Published: 2018-11-01

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.

Type:

CWE-190

(Integer Overflow or Wraparound)

CVSS2 => (AV:N/AC:L/Au:S/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4/10
2.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Powerdns -> Authoritative 
Debian -> Debian linux 

 References:
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2120
https://www.debian.org/security/2017/dsa-3764

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