PT-2018-5772 · Powerdns · Powerdns Recursor

Toshifumi Sakaguchi · Published 2017-12-11 · Updated 2019-10-09 · CVE-2017-15120

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: PowerDNS Recursor versions prior to 4.0.8

Description: The issue is related to the parsing of authoritative answers, which can lead to a denial of service when an unauthenticated remote attacker sends a specially crafted answer containing a CNAME of a different class than IN. This results in a NULL pointer dereference.

Recommendations: For versions prior to 4.0.8, update to version 4.0.8 or later to resolve the issue.

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2017-15120

DSA-4063-1

Affected Products

Powerdns Recursor

References · 17

• https://osv.dev/vulnerability/CVE-2017-15120 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-15120 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-15120 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-15120 · Vendor Advisory
• https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-08.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-15120 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4063-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15120 · Security Note
• https://security-tracker.debian.org/tracker/DSA-4063-1 · Vendor Advisory
• http://seclists.org/oss-sec/2017/q4/382 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2017-15120 · Security Note
• https://security-tracker.debian.org/tracker/source-package/pdns-recursor · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2017-15120 · Vendor Advisory
• https://debian.org/security/2017/dsa-4063 · Vendor Advisory
• https://packages.debian.org/src:pdns-recursor · Note