CVE-2017-15120

high

Description

An issue has been found in the parsing of authoritative answers in PowerDNS Recursor before 4.0.8, leading to a NULL pointer dereference when parsing a specially crafted answer containing a CNAME of a different class than IN. An unauthenticated remote attacker could cause a denial of service.

References

https://www.debian.org/security/2017/dsa-4063

https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-08.html

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15120

http://www.securityfocus.com/bid/106335

http://seclists.org/oss-sec/2017/q4/382

Details

Source: Mitre, NVD

Published: 2018-07-27

Updated: 2019-10-09

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High