Vulnerability Name:

CVE-2016-7072 (CCN-151674)

Assigned:2016-12-15
Published:2016-12-15
Updated:2019-10-09
Summary:An issue has been found in PowerDNS Authoritative Server before 3.4.11 and 4.0.2 allowing a remote, unauthenticated attacker to cause a denial of service by opening a large number of TCP connections to the web server. If the web server runs out of file descriptors, it triggers an exception and terminates the whole PowerDNS process. While it's more complicated for an unauthorized attacker to make the web server run out of file descriptors since its connection will be closed just after being accepted, it might still be possible.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-400
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2016-7072

Source: CONFIRM
Type: Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7072

Source: CCN
Type: PowerDNS Security Advisory 2016-03
Denial of service via the web server

Source: CONFIRM
Type: Vendor Advisory
https://doc.powerdns.com/md/security/powerdns-advisory-2016-03/

Source: XF
Type: UNKNOWN
powerdns-cve20167072-dos(151674)

Source: DEBIAN
Type: Third Party Advisory
DSA-3764

Vulnerable Configuration:Configuration 1:
  • cpe:/a:powerdns:authoritative:*:*:*:*:*:*:*:* (Version < 3.4.11)
  • OR cpe:/a:powerdns:authoritative:*:*:*:*:*:*:*:* (Version >= 4.0.0 and < 4.0.2)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:powerdns:authoritative_server:4.0.1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20167072
    V
    		CVE-2016-7072
    2022-06-30
    oval:org.opensuse.security:def:113102
    P
    		pdns-4.5.1-1.5 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:106537
    P
    		pdns-4.5.1-1.5 on GA media (Moderate)
    2021-10-01
    oval:com.ubuntu.disco:def:201670720000000
    V
    		CVE-2016-7072 on Ubuntu 19.04 (disco) - medium.
    2018-09-10
    oval:com.ubuntu.trusty:def:20167072000
    V
    		CVE-2016-7072 on Ubuntu 14.04 LTS (trusty) - medium.
    2018-09-10
    oval:com.ubuntu.cosmic:def:201670720000000
    V
    		CVE-2016-7072 on Ubuntu 18.10 (cosmic) - medium.
    2018-09-10
    oval:com.ubuntu.bionic:def:20167072000
    V
    		CVE-2016-7072 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-09-10
    oval:com.ubuntu.xenial:def:20167072000
    V
    		CVE-2016-7072 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-09-10
    oval:com.ubuntu.bionic:def:201670720000000
    V
    		CVE-2016-7072 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-09-10
    oval:com.ubuntu.cosmic:def:20167072000
    V
    		CVE-2016-7072 on Ubuntu 18.10 (cosmic) - medium.
    2018-09-10
    oval:com.ubuntu.xenial:def:201670720000000
    V
    		CVE-2016-7072 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-09-10
    oval:org.cisecurity:def:1763
    P
    		DSA-3764-1 -- pdns -- security update
    2017-02-24
    oval:com.ubuntu.artful:def:20167072000
    V
    		CVE-2016-7072 on Ubuntu 17.10 (artful) - medium.
    2017-01-13
    oval:com.ubuntu.precise:def:20167072000
    V
    		CVE-2016-7072 on Ubuntu 12.04 LTS (precise) - medium.
    2017-01-13
    BACK
    powerdns authoritative *
    powerdns authoritative *
    debian debian linux 8.0
    powerdns authoritative server 4.0.1