diff --git a/SOURCES/bind-9.11-stale-cache.patch b/SOURCES/bind-9.11-stale-cache.patch new file mode 100644 index 0000000..1a9f003 --- /dev/null +++ b/SOURCES/bind-9.11-stale-cache.patch @@ -0,0 +1,65 @@ +From 8a7bff93037432fcfe8532752e89f150ea3030a4 Mon Sep 17 00:00:00 2001 +From: Petr Mensik +Date: Mon, 9 Oct 2023 19:00:12 +0200 +Subject: [PATCH] Do not keep stale records by default + +By default set max-stale-ttl to 0, unless stale-answer-enable yes. This +were enabled by mistake when backporting fix for CVE-2023-2828. It +causes increased cache usage on servers not wanting to serve stale +records. Fix that by setting smart defaults based on stale answers +enabled with possible manual tuning. +--- + bin/named/server.c | 25 +++++++++++++++++++------ + 1 file changed, 19 insertions(+), 6 deletions(-) + +diff --git a/bin/named/server.c b/bin/named/server.c +index 7af90d0..afdc4fa 100644 +--- a/bin/named/server.c ++++ b/bin/named/server.c +@@ -3295,7 +3295,7 @@ configure_view(dns_view_t *view, dns_viewlist_t *viewlist, + size_t max_acache_size; + size_t max_adb_size; + uint32_t lame_ttl, fail_ttl; +- uint32_t max_stale_ttl; ++ uint32_t max_stale_ttl = 0; + dns_tsig_keyring_t *ring = NULL; + dns_view_t *pview = NULL; /* Production view */ + isc_mem_t *cmctx = NULL, *hmctx = NULL; +@@ -3739,16 +3739,29 @@ configure_view(dns_view_t *view, dns_viewlist_t *viewlist, + if (view->maxncachettl > 7 * 24 * 3600) + view->maxncachettl = 7 * 24 * 3600; + +- obj = NULL; +- result = ns_config_get(maps, "max-stale-ttl", &obj); +- INSIST(result == ISC_R_SUCCESS); +- max_stale_ttl = cfg_obj_asuint32(obj); +- + obj = NULL; + result = ns_config_get(maps, "stale-answer-enable", &obj); + INSIST(result == ISC_R_SUCCESS); + view->staleanswersenable = cfg_obj_asboolean(obj); + ++ // RHEL-11785 -- set the stale-ttl to non-zero value only if enabled ++ obj = NULL; ++ if (view->staleanswersenable) { ++ result = ns_config_get(maps, "max-stale-ttl", &obj); ++ INSIST(result == ISC_R_SUCCESS); ++ max_stale_ttl = cfg_obj_asuint32(obj); ++ /* ++ * If 'stale-answer-enable' is false, max_stale_ttl is set ++ * to 0, meaning keeping stale RRsets in cache is disabled. ++ */ ++ } else { ++ /* Do not use default value if stale is disabled, ++ * but allow manual overriding, like 'stale-cache-enable' */ ++ result = ns_config_get(optionmaps, "max-stale-ttl", &obj); ++ if (result == ISC_R_SUCCESS) ++ max_stale_ttl = cfg_obj_asuint32(obj); ++ } ++ + result = dns_viewlist_find(&ns_g_server->viewlist, view->name, + view->rdclass, &pview); + if (result == ISC_R_SUCCESS) { +-- +2.41.0 + diff --git a/SOURCES/bind-9.16-update-b.root-servers.net.patch b/SOURCES/bind-9.16-update-b.root-servers.net.patch new file mode 100644 index 0000000..9bc20e8 --- /dev/null +++ b/SOURCES/bind-9.16-update-b.root-servers.net.patch @@ -0,0 +1,31 @@ +From 4e595a6b961e73af43350833109ccba0950119f9 Mon Sep 17 00:00:00 2001 +From: Mark Andrews +Date: Thu, 12 Oct 2023 10:19:38 +1100 +Subject: [PATCH] Update b.root-servers.net IP addresses + +This covers both root hints and the default primaries for the root +zone mirror. The official change date is Nov 27, 2023. + +(cherry picked from commit 2ca2f7e9852a3d6e93f065c01ea4679f723688f7) +--- + lib/dns/rootns.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/lib/dns/rootns.c b/lib/dns/rootns.c +index 9653f3b..d6ff76e 100644 +--- a/lib/dns/rootns.c ++++ b/lib/dns/rootns.c +@@ -56,8 +56,8 @@ static char root_ns[] = + ". 518400 IN NS M.ROOT-SERVERS.NET.\n" + "A.ROOT-SERVERS.NET. 3600000 IN A 198.41.0.4\n" + "A.ROOT-SERVERS.NET. 3600000 IN AAAA 2001:503:BA3E::2:30\n" +-"B.ROOT-SERVERS.NET. 3600000 IN A 199.9.14.201\n" +-"B.ROOT-SERVERS.NET. 3600000 IN AAAA 2001:500:200::b\n" ++"B.ROOT-SERVERS.NET. 3600000 IN A 170.247.170.2\n" ++"B.ROOT-SERVERS.NET. 3600000 IN AAAA 2801:1b8:10::b\n" + "C.ROOT-SERVERS.NET. 3600000 IN A 192.33.4.12\n" + "C.ROOT-SERVERS.NET. 3600000 IN AAAA 2001:500:2::c\n" + "D.ROOT-SERVERS.NET. 3600000 IN A 199.7.91.13\n" +-- +2.43.0 + diff --git a/SOURCES/named.root b/SOURCES/named.root index 532d4ff..18b8e44 100644 --- a/SOURCES/named.root +++ b/SOURCES/named.root @@ -1,13 +1,13 @@ -; <<>> DiG 9.11.3-RedHat-9.11.3-3.fc27 <<>> +bufsize=1200 +norec @a.root-servers.net -; (2 servers found) +; <<>> DiG 9.18.20 <<>> -4 +tcp +norec +nostats @d.root-servers.net +; (1 server found) ;; global options: +cmd ;; Got answer: -;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 46900 +;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 47286 ;; flags: qr aa; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 27 ;; OPT PSEUDOSECTION: -; EDNS: version: 0, flags:; udp: 1472 +; EDNS: version: 0, flags:; udp: 1450 ;; QUESTION SECTION: ;. IN NS @@ -28,7 +28,7 @@ ;; ADDITIONAL SECTION: a.root-servers.net. 518400 IN A 198.41.0.4 -b.root-servers.net. 518400 IN A 199.9.14.201 +b.root-servers.net. 518400 IN A 170.247.170.2 c.root-servers.net. 518400 IN A 192.33.4.12 d.root-servers.net. 518400 IN A 199.7.91.13 e.root-servers.net. 518400 IN A 192.203.230.10 @@ -41,7 +41,7 @@ k.root-servers.net. 518400 IN A 193.0.14.129 l.root-servers.net. 518400 IN A 199.7.83.42 m.root-servers.net. 518400 IN A 202.12.27.33 a.root-servers.net. 518400 IN AAAA 2001:503:ba3e::2:30 -b.root-servers.net. 518400 IN AAAA 2001:500:200::b +b.root-servers.net. 518400 IN AAAA 2801:1b8:10::b c.root-servers.net. 518400 IN AAAA 2001:500:2::c d.root-servers.net. 518400 IN AAAA 2001:500:2d::d e.root-servers.net. 518400 IN AAAA 2001:500:a8::e @@ -54,8 +54,3 @@ k.root-servers.net. 518400 IN AAAA 2001:7fd::1 l.root-servers.net. 518400 IN AAAA 2001:500:9f::42 m.root-servers.net. 518400 IN AAAA 2001:dc3::35 -;; Query time: 24 msec -;; SERVER: 198.41.0.4#53(198.41.0.4) -;; WHEN: Thu Apr 05 15:57:34 CEST 2018 -;; MSG SIZE rcvd: 811 - diff --git a/SPECS/bind.spec b/SPECS/bind.spec index 13f16e1..34b69d7 100644 --- a/SPECS/bind.spec +++ b/SPECS/bind.spec @@ -68,7 +68,7 @@ Summary: The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) serv Name: bind License: MPLv2.0 Version: 9.11.36 -Release: 11%{?PATCHVER:.%{PATCHVER}}%{?PREVER:.%{PREVER}}%{?dist}.1 +Release: 14%{?PATCHVER:.%{PATCHVER}}%{?PREVER:.%{PREVER}}%{?dist} Epoch: 32 Url: https://www.isc.org/downloads/bind/ # @@ -175,14 +175,18 @@ Patch196: bind-9.16-CVE-2022-3094-test.patch # https://gitlab.isc.org/isc-projects/bind9/commit/f1d9e9ee3859976f403914d20ad2a10855343702 Patch197: bind-9.11-CVE-2023-2828.patch Patch198: bind-9.16-CVE-2023-3341.patch +# https://issues.redhat.com/browse/RHEL-11785, downstream +Patch199: bind-9.11-stale-cache.patch +# https://gitlab.isc.org/isc-projects/bind9/commit/8924adca613ca9daea63786563cce6fdbd742c56 +Patch200: bind-9.16-update-b.root-servers.net.patch # https://gitlab.isc.org/isc-projects/bind9/-/merge_requests/8768 -Patch199: bind-9.11-CVE-2023-4408.patch +Patch201: bind-9.11-CVE-2023-4408.patch # https://gitlab.isc.org/isc-projects/bind9/-/merge_requests/8769 -Patch200: bind-9.11-CVE-2023-50387.patch +Patch202: bind-9.11-CVE-2023-50387.patch # https://gitlab.isc.org/isc-projects/bind9/-/merge_requests/8778 -Patch201: bind-9.11-CVE-2023-2828-fixup.patch +Patch203: bind-9.11-CVE-2023-2828-fixup.patch # addition to patch 200 -Patch202: bind-9.11-CVE-2023-50387-fixup.patch +Patch204: bind-9.11-CVE-2023-50387-fixup.patch # SDB patches Patch11: bind-9.3.2b2-sdbsrc.patch @@ -591,10 +595,12 @@ are used for building ISC DHCP. %patch196 -p1 -b .CVE-2022-3094-test %patch197 -p1 -b .CVE-2023-2828 %patch198 -p1 -b .CVE-2023-3341 -%patch199 -p1 -b .CVE-2023-4408 -%patch200 -p1 -b .CVE-2023-50387+50868 -%patch201 -p1 -b .CVE-2023-2828-fixup -%patch202 -p1 -b .CVE-2023-50387-fixup +%patch199 -p1 -b .RHEL-11785 +%patch200 -p1 -b .b.root-servers.net +%patch201 -p1 -b .CVE-2023-4408 +%patch202 -p1 -b .CVE-2023-50387+50868 +%patch203 -p1 -b .CVE-2023-2828-fixup +%patch204 -p1 -b .CVE-2023-50387-fixup mkdir lib/dns/tests/testdata/dstrandom cp -a %{SOURCE50} lib/dns/tests/testdata/dstrandom/random.data @@ -1647,11 +1653,17 @@ rm -rf ${RPM_BUILD_ROOT} %endif %changelog -* Mon Feb 26 2024 Petr Menšík - 32:9.11.36-11.1 +* Mon Feb 26 2024 Petr Menšík - 32:9.11.36-14 - Speed up parsing of DNS messages with many different names (CVE-2023-4408) - Prevent increased CPU consumption in DNSSEC validator (CVE-2023-50387 CVE-2023-50868) - Do not use header_prev in expire_lru_headers +* Thu Dec 07 2023 Petr Menšík - 32:9.11.36-13 +- Update addresses of b.root-servers.net (RHEL-18449) + +* Mon Oct 09 2023 Petr Menšík - 32:9.11.36-12 +- Disable caching of stale records by default (RHEL-11785) + * Tue Sep 19 2023 Petr Menšík - 32:9.11.36-11 - Prevent exahustion of memory from control channel (CVE-2023-3341)