the ultimate security vulnerability data source
(e.g.: CVE-2009-1234 or 2010-1234 or 20101234)
Log In   Register
  Take a third party risk management course for FREE
Vulnerability Feeds & WidgetsNew   

Vulnerability Details : CVE-2018-5738

Change #4777 (introduced in October 2017) introduced an unforeseen issue in releases which were issued after that date, affecting which clients are permitted to make recursive queries to a BIND nameserver. The intended (and documented) behavior is that if an operator has not specified a value for the "allow-recursion" setting, it SHOULD default to one of the following: none, if "recursion no;" is set in named.conf; a value inherited from the "allow-query-cache" or "allow-query" settings IF "recursion yes;" (the default for that setting) AND match lists are explicitly set for "allow-query-cache" or "allow-query" (see the BIND9 Administrative Reference Manual section 6.2 for more details); or the intended default of "allow-recursion {localhost; localnets;};" if "recursion yes;" is in effect and no values are explicitly set for "allow-query-cache" or "allow-query". However, because of the regression introduced by change #4777, it is possible when "recursion yes;" is in effect and no match list values are provided for "allow-query-cache" or "allow-query" for the setting of "allow-recursion" to inherit a setting of all hosts from the "allow-query" setting default, improperly permitting recursion to all clients. Affects BIND 9.9.12, 9.10.7, 9.11.3, 9.12.0->9.12.1-P2, the development release 9.13.0, and also releases 9.9.12-S1, 9.10.7-S1, 9.11.3-S1, and 9.11.3-S2 from BIND 9 Supported Preview Edition.
Publish Date : 2019-01-16 Last Update Date : 2019-08-30
Search Twitter   Search YouTube   Search Google

- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Obtain Information
CWE ID 200

- Products Affected By CVE-2018-5738

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 18.04 * * * Version Details Vulnerabilities
2 Application ISC Bind 9.9.12 * * * Version Details Vulnerabilities
3 Application ISC Bind 9.9.12 S1 * * Version Details Vulnerabilities
4 Application ISC Bind 9.10.7 * * * Version Details Vulnerabilities
5 Application ISC Bind 9.10.7 S1 * * Version Details Vulnerabilities
6 Application ISC Bind 9.11.3 * * * Version Details Vulnerabilities
7 Application ISC Bind 9.11.3 S2 * * Version Details Vulnerabilities
8 Application ISC Bind 9.11.3 S1 * * Version Details Vulnerabilities
9 Application ISC Bind 9.12.0 B1 * * Version Details Vulnerabilities
10 Application ISC Bind 9.12.0 B2 * * Version Details Vulnerabilities
11 Application ISC Bind 9.12.0 * * * Version Details Vulnerabilities
12 Application ISC Bind 9.12.0 RC1 * * Version Details Vulnerabilities
13 Application ISC Bind 9.12.0 RC3 * * Version Details Vulnerabilities
14 Application ISC Bind 9.12.0 A1 * * Version Details Vulnerabilities
15 Application ISC Bind 9.12.1 P1 * * Version Details Vulnerabilities
16 Application ISC Bind 9.12.1 * * * Version Details Vulnerabilities
17 Application ISC Bind 9.12.1 P2 * * Version Details Vulnerabilities
18 Application ISC Bind 9.13.0 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 1
ISC Bind 17

- References For CVE-2018-5738 CONFIRM
GENTOO GLSA-201903-13

- Metasploit Modules Related To CVE-2018-5738

There are not any metasploit modules related to this CVE entry (Please visit for more information)

CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site. OVAL is a registered trademark of The MITRE Corporation and the authoritative source of OVAL content is MITRE's OVAL web site.
Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.