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Home CVE Database CVE-2018-5738

CVE-2018-5738

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.

Priority: MEDIUM
CVSS v3: 7.5
Component: bind
Publish Date: Jul 14, 2018
Related ID: --
CVSS v2: HIGH
Modified Date: Jul 14, 2018

Find out more about CVE-2018-5738 from the MITRE-CVE dictionary and NIST NVD


Products Affected

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Product Name Status Defect Fixed Downloads
Linux
Wind River Linux LTS 17 Fixed LIN10-4273
10.17.41.10 Wind River Linux LTS 10.17.41.10
Wind River Linux LTS 10.17.41.11
Wind River Linux LTS 10.17.41.12
Wind River Linux LTS 10.17.41.13
Wind River Linux LTS 10.17.41.14
Wind River Linux LTS 10.17.41.15
Wind River Linux LTS 10.17.41.16
Wind River Linux LTS 10.17.41.17
Wind River Linux LTS 10.17.41.18
Wind River Linux LTS 10.17.41.20
Wind River Linux LTS 10.17.41.21
Wind River Linux LTS 10.17.41.22
Wind River Linux LTS 10.17.41.23
Wind River Linux LTS 10.17.41.24
Wind River Linux LTS 10.17.41.25
Wind River Linux 8 Fixed LIN8-9412
8.0.0.27 --
Wind River Linux 9 Fixed LIN9-7108
9.0.0.17 --
Wind River Linux 7 Fixed -- 7.0.0.29 --
Wind River Linux LTS 21 Not Vulnerable -- -- --
Wind River Linux LTS 18 Not Vulnerable -- -- --
Wind River Linux LTS 19 Not Vulnerable -- -- --
Wind River Linux CD release Not Vulnerable -- -- --
VxWorks
VxWorks 7 Not Vulnerable -- -- --
VxWorks 6.9 Not Vulnerable -- -- --

Related Products

Product Name Status Defect Fixed Downloads

Notes
Requires LTSS - customers must have active LTSS (Long Term Security Shield) Support to receive up-to-date information about vulnerabilities that may affect legacy software. Please contact your Wind River account team or see https://docs.windriver.com/bundle/Support_and_Maintenance_Supplemental_Terms_and_Conditions and https://support2.windriver.com/index.php?page=plc for more information.
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