Upstream information

CVE-2018-5738 at MITRE

Description

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7.5 5.3
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Access Vector Network Network
Access Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High Low
Integrity Impact None None
Availability Impact None None
CVSSv3 Version 3 3
SUSE Bugzilla entry: 1096864 [RESOLVED / INVALID]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Module for Basesystem 15 SP3
  • bind-devel >= 9.16.6-20.39
  • bind-utils >= 9.16.6-20.39
  • libbind9-1600 >= 9.16.6-20.39
  • libdns1605 >= 9.16.6-20.39
  • libirs-devel >= 9.16.6-20.39
  • libirs1601 >= 9.16.6-20.39
  • libisc1606 >= 9.16.6-20.39
  • libisccc1600 >= 9.16.6-20.39
  • libisccfg1600 >= 9.16.6-20.39
  • libns1604 >= 9.16.6-20.39
  • python3-bind >= 9.16.6-20.39
SUSE Linux Enterprise Module for Server Applications 15 SP3
  • bind >= 9.16.6-20.39
  • bind-chrootenv >= 9.16.6-20.39
  • bind-doc >= 9.16.6-20.39


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE CaaS Platform 4.0 bind In progress
SUSE Enterprise Storage 6 bind In progress
SUSE Linux Enterprise Desktop 11 bind Not affected
SUSE Linux Enterprise Desktop 11 SP1 bind Not affected
SUSE Linux Enterprise Desktop 11 SP2 bind Not affected
SUSE Linux Enterprise Desktop 11 SP3 bind Not affected
SUSE Linux Enterprise Desktop 11 SP4 bind Not affected
SUSE Linux Enterprise Desktop 12 SP1 bind Not affected
SUSE Linux Enterprise Desktop 12 SP2 bind Not affected
SUSE Linux Enterprise Desktop 12 SP3 bind Not affected
SUSE Linux Enterprise High Performance Computing 12 SP4 bind Affected
SUSE Linux Enterprise High Performance Computing 12 SP5 bind In progress
SUSE Linux Enterprise High Performance Computing 15 LTSS bind In progress
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS bind In progress
SUSE Linux Enterprise Module for Basesystem 15 bind Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 bind In progress
SUSE Linux Enterprise Module for Server Applications 15 bind Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP2 bind In progress
SUSE Linux Enterprise Server 11 SP3 LTSS bind Not affected
SUSE Linux Enterprise Server 11 SP4 bind Not affected
SUSE Linux Enterprise Server 12 SP1 LTSS bind Not affected
SUSE Linux Enterprise Server 12 SP2 LTSS bind Not affected
SUSE Linux Enterprise Server 12 SP3 bind Not affected
SUSE Linux Enterprise Server 12 SP4 bind Affected
SUSE Linux Enterprise Server 12 SP4 ESPOS bind In progress
SUSE Linux Enterprise Server 12 SP4 LTSS bind In progress
SUSE Linux Enterprise Server 12 SP5 bind In progress
SUSE Linux Enterprise Server 15 ESPOS bind In progress
SUSE Linux Enterprise Server 15 LTSS bind In progress
SUSE Linux Enterprise Server 15 SP1 LTSS bind In progress
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 bind In progress
SUSE Linux Enterprise Server for SAP Applications 12 SP4 bind In progress
SUSE Linux Enterprise Server for SAP Applications 12 SP5 bind In progress
SUSE Linux Enterprise Server for SAP Applications 15 bind In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP1 bind In progress
SUSE Linux Enterprise Software Development Kit 11 SP4 bind Not affected
SUSE Linux Enterprise Software Development Kit 12 SP3 bind Not affected
SUSE Linux Enterprise Software Development Kit 12 SP4 bind Affected
SUSE Linux Enterprise Software Development Kit 12 SP5 bind Not affected
SUSE Manager Proxy 4.0 bind In progress
SUSE Manager Retail Branch Server 4.0 bind In progress
SUSE Manager Server 4.0 bind In progress
SUSE OpenStack Cloud 9 bind In progress
SUSE OpenStack Cloud Crowbar 9 bind In progress