diff --git a/CHANGES b/CHANGES index 3f7bc28aaa..7b0d6368b8 100644 --- a/CHANGES +++ b/CHANGES @@ -1,3 +1,7 @@ +4531. [security] Some RPZ configurations could go into an infinite + query loop when encountering responses with TTL=0. + (CVE-2017-3140) [RT #45181] + 4530. [bug] "dyndb" is dependent on dlopen existing / being enabled. [RT #45291] diff --git a/README b/README index abce8e15e9..88438e0cd4 100644 --- a/README +++ b/README @@ -222,6 +222,13 @@ disclosed in CVE-2016-6170, CVE-2016-8864, CVE-2016-9131, CVE-2016-9147, CVE-2016-9444, CVE-2016-9778, CVE-2017-3135, CVE-2017-3136, CVE-2017-3137 and CVE-2017-3138. +BIND 9.11.2 + +BIND 9.11.1 is a maintenance release, and addresses the security flaw +disclosed in CVE-2017-3140. It also addresses several bugs related to the +use of an LMDB database to store data related to zones added via rndc +addzone or catalog zones. + Building BIND BIND requires a UNIX or Linux system with an ANSI C compiler, basic POSIX diff --git a/README.md b/README.md index d906268549..a85f9a410b 100644 --- a/README.md +++ b/README.md @@ -234,6 +234,13 @@ flaws disclosed in CVE-2016-6170, CVE-2016-8864, CVE-2016-9131, CVE-2016-9147, CVE-2016-9444, CVE-2016-9778, CVE-2017-3135, CVE-2017-3136, CVE-2017-3137 and CVE-2017-3138. +#### BIND 9.11.2 + +BIND 9.11.1 is a maintenance release, and addresses the security flaw +disclosed in CVE-2017-3140. It also addresses several bugs related to +the use of an LMDB database to store data related to zones added via +`rndc addzone` or catalog zones. + ### Building BIND BIND requires a UNIX or Linux system with an ANSI C compiler, basic POSIX diff --git a/bin/named/query.c b/bin/named/query.c index cbaf648dd5..a7af1372f3 100644 --- a/bin/named/query.c +++ b/bin/named/query.c @@ -8102,7 +8102,7 @@ query_find(ns_client_t *client, dns_fetchevent_t *event, dns_rdatatype_t qtype) /* * If we have a zero ttl from the cache refetch it. */ - if (!is_zone && event == NULL && rdataset->ttl == 0 && + if (!is_zone && !resuming && rdataset->ttl == 0 && RECURSIONOK(client)) { if (dns_rdataset_isassociated(rdataset)) @@ -8574,7 +8574,7 @@ query_find(ns_client_t *client, dns_fetchevent_t *event, dns_rdatatype_t qtype) /* * If we have a zero ttl from the cache refetch it. */ - if (!is_zone && event == NULL && rdataset->ttl == 0 && + if (!is_zone && !resuming && rdataset->ttl == 0 && RECURSIONOK(client)) { if (dns_rdataset_isassociated(rdataset)) diff --git a/doc/arm/notes.xml b/doc/arm/notes.xml index a8ed9465f8..8202ca4062 100644 --- a/doc/arm/notes.xml +++ b/doc/arm/notes.xml @@ -95,7 +95,10 @@ - None. + With certain RPZ configurations, a response with TTL 0 + could cause named to go into an infinite + query loop. This flaw is disclosed in CVE-2017-3140. + [RT #45181]