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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
36cpe:2.3:a:isc:bind:9.10.7:*:*:*:*:*:*:*+ 18 more
- cpe:2.3:a:isc:bind:9.10.7:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:9.10.7:s1:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:9.11.3:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:9.11.3:s1:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:9.11.3:s2:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:9.12.0:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:9.12.0:a1:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:9.12.0:b1:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:9.12.0:b2:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:9.12.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:9.12.0:rc3:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:9.12.1:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:9.12.1:p1:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:9.12.1:p2:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:9.13.0:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:9.9.12:*:*:*:*:*:*:*
- cpe:2.3:a:isc:bind:9.9.12:s1:*:*:*:*:*:*
- (no CPE)range: 9.9.12, 9.10.7, 9.11.3, 9.12.0-9.12.1-P2, 9.13.0, 9.9.12-S1, 9.10.7-S1, 9.11.3-S1, 9.11.3-S2
- (no CPE)range: 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.
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- osv-coords16 versionspkg:apk/chainguard/bindpkg:apk/chainguard/bind-devpkg:apk/chainguard/bind-dnssec-rootpkg:apk/chainguard/bind-dnssec-toolspkg:apk/chainguard/bind-docpkg:apk/chainguard/bind-libspkg:apk/chainguard/bind-pluginspkg:apk/chainguard/bind-toolspkg:apk/wolfi/bindpkg:apk/wolfi/bind-devpkg:apk/wolfi/bind-dnssec-rootpkg:apk/wolfi/bind-dnssec-toolspkg:apk/wolfi/bind-docpkg:apk/wolfi/bind-libspkg:apk/wolfi/bind-pluginspkg:apk/wolfi/bind-tools
< 0+ 15 more
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
Patches
Vulnerability mechanics
References
5- www.securitytracker.com/id/1041115nvdThird Party AdvisoryVDB Entry
- kb.isc.org/docs/aa-01616nvdMitigationVendor Advisory
- security.gentoo.org/glsa/201903-13nvdThird Party Advisory
- usn.ubuntu.com/3683-1/nvdThird Party Advisory
- security.netapp.com/advisory/ntap-20190830-0002/nvd
News mentions
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