import bind9.16-9.16.23-0.9.el8.1

This commit is contained in:
CentOS Sources 2022-10-04 18:09:34 +00:00 committed by Stepan Oksanichenko
parent b9b16d8471
commit 90072b38c5
4 changed files with 187 additions and 1 deletions

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@ -0,0 +1,116 @@
From 3bcd32572504ac9b92e3c6ec1e2cee3df3b68309 Mon Sep 17 00:00:00 2001
From: Petr Mensik <pemensik@redhat.com>
Date: Tue, 20 Sep 2022 11:34:42 +0200
Subject: [PATCH 2/4] Fix CVE-2022-3080
5960. [security] Fix serve-stale crash that could happen when
stale-answer-client-timeout was set to 0 and there was
a stale CNAME in the cache for an incoming query.
(CVE-2022-3080) [GL #3517]
---
lib/ns/include/ns/query.h | 1 +
lib/ns/query.c | 42 ++++++++++++++++++++++++---------------
2 files changed, 27 insertions(+), 16 deletions(-)
diff --git a/lib/ns/include/ns/query.h b/lib/ns/include/ns/query.h
index 4d48cf6..34b3070 100644
--- a/lib/ns/include/ns/query.h
+++ b/lib/ns/include/ns/query.h
@@ -145,6 +145,7 @@ struct query_ctx {
bool authoritative; /* authoritative query? */
bool want_restart; /* CNAME chain or other
* restart needed */
+ bool refresh_rrset; /* stale RRset refresh needed */
bool need_wildcardproof; /* wildcard proof needed */
bool nxrewrite; /* negative answer from RPZ */
bool findcoveringnsec; /* lookup covering NSEC */
diff --git a/lib/ns/query.c b/lib/ns/query.c
index 249321c..a450cb7 100644
--- a/lib/ns/query.c
+++ b/lib/ns/query.c
@@ -5686,7 +5686,6 @@ query_lookup(query_ctx_t *qctx) {
bool dbfind_stale = false;
bool stale_timeout = false;
bool stale_found = false;
- bool refresh_rrset = false;
bool stale_refresh_window = false;
CCTRACE(ISC_LOG_DEBUG(3), "query_lookup");
@@ -5868,8 +5867,7 @@ query_lookup(query_ctx_t *qctx) {
"%s stale answer used, an attempt to "
"refresh the RRset will still be made",
namebuf);
- refresh_rrset = STALE(qctx->rdataset);
- qctx->client->nodetach = refresh_rrset;
+ qctx->refresh_rrset = STALE(qctx->rdataset);
}
} else {
/*
@@ -5907,17 +5905,6 @@ query_lookup(query_ctx_t *qctx) {
result = query_gotanswer(qctx, result);
- if (refresh_rrset) {
- /*
- * If we reached this point then it means that we have found a
- * stale RRset entry in cache and BIND is configured to allow
- * queries to be answered with stale data if no active RRset
- * is available, i.e. "stale-anwer-client-timeout 0". But, we
- * still need to refresh the RRset.
- */
- query_refresh_rrset(qctx);
- }
-
cleanup:
return (result);
}
@@ -7737,11 +7724,14 @@ query_addanswer(query_ctx_t *qctx) {
/*
* On normal lookups, clear any rdatasets that were added on a
- * lookup due to stale-answer-client-timeout.
+ * lookup due to stale-answer-client-timeout. Do not clear if we
+ * are going to refresh the RRset, because the stale contents are
+ * prioritized.
*/
if (QUERY_STALEOK(&qctx->client->query) &&
- !QUERY_STALETIMEOUT(&qctx->client->query))
+ !QUERY_STALETIMEOUT(&qctx->client->query) && !qctx->refresh_rrset)
{
+ CCTRACE(ISC_LOG_DEBUG(3), "query_clear_stale");
query_clear_stale(qctx->client);
/*
* We can clear the attribute to prevent redundant clearing
@@ -11457,9 +11447,29 @@ ns_query_done(query_ctx_t *qctx) {
/*
* Client may have been detached after query_send(), so
* we test and store the flag state here, for safety.
+ * If we are refreshing the RRSet, we must not detach from the client
+ * in the query_send(), so we need to override the flag.
*/
+ if (qctx->refresh_rrset) {
+ qctx->client->nodetach = true;
+ }
nodetach = qctx->client->nodetach;
query_send(qctx->client);
+
+ if (qctx->refresh_rrset) {
+ /*
+ * If we reached this point then it means that we have found a
+ * stale RRset entry in cache and BIND is configured to allow
+ * queries to be answered with stale data if no active RRset
+ * is available, i.e. "stale-anwer-client-timeout 0". But, we
+ * still need to refresh the RRset. To prevent adding duplicate
+ * RRsets, clear the RRsets from the message before doing the
+ * refresh.
+ */
+ message_clearrdataset(qctx->client->message, 0);
+ query_refresh_rrset(qctx);
+ }
+
if (!nodetach) {
qctx->detach_client = true;
}
--
2.37.3

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@ -0,0 +1,27 @@
From df8222fb189708199a185f73543b6e0602c1c72f Mon Sep 17 00:00:00 2001
From: Petr Mensik <pemensik@redhat.com>
Date: Tue, 20 Sep 2022 11:21:45 +0200
Subject: [PATCH 3/4] Fix CVE-2022-38177
5961. [security] Fix memory leak in ECDSA verify processing.
(CVE-2022-38177) [GL #3487]
---
lib/dns/opensslecdsa_link.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/dns/opensslecdsa_link.c b/lib/dns/opensslecdsa_link.c
index ce4c8c4..3847896 100644
--- a/lib/dns/opensslecdsa_link.c
+++ b/lib/dns/opensslecdsa_link.c
@@ -228,7 +228,7 @@ opensslecdsa_verify(dst_context_t *dctx, const isc_region_t *sig) {
}
if (sig->length != siglen) {
- return (DST_R_VERIFYFAILURE);
+ DST_RET(DST_R_VERIFYFAILURE);
}
if (!EVP_DigestFinal_ex(evp_md_ctx, digest, &dgstlen)) {
--
2.37.3

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@ -0,0 +1,32 @@
From 132ef295b8407f91e6922f4dfc4f30f1790b61c5 Mon Sep 17 00:00:00 2001
From: Petr Mensik <pemensik@redhat.com>
Date: Tue, 20 Sep 2022 11:22:47 +0200
Subject: [PATCH 4/4] Fix CVE-2022-38178
5962. [security] Fix memory leak in EdDSA verify processing.
(CVE-2022-38178) [GL #3487]
---
lib/dns/openssleddsa_link.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/dns/openssleddsa_link.c b/lib/dns/openssleddsa_link.c
index 6a6a74d..3157011 100644
--- a/lib/dns/openssleddsa_link.c
+++ b/lib/dns/openssleddsa_link.c
@@ -234,11 +234,11 @@ openssleddsa_verify(dst_context_t *dctx, const isc_region_t *sig) {
}
#endif /* if HAVE_OPENSSL_ED448 */
if (siglen == 0) {
- return (ISC_R_NOTIMPLEMENTED);
+ DST_RET(ISC_R_NOTIMPLEMENTED);
}
if (sig->length != siglen) {
- return (DST_R_VERIFYFAILURE);
+ DST_RET(DST_R_VERIFYFAILURE);
}
isc_buffer_usedregion(buf, &tbsreg);
--
2.37.3

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@ -57,7 +57,7 @@ Summary: The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) serv
Name: bind9.16
License: MPLv2.0
Version: 9.16.23
Release: 0.9%{?dist}
Release: 0.9%{?dist}.1
Epoch: 32
Url: https://www.isc.org/downloads/bind/
#
@ -111,6 +111,9 @@ Patch171:bind-9.11-tests-variants.patch
Patch172:bind-9.16-CVE-2022-0396.patch
Patch173:bind-9.16-CVE-2021-25220.patch
Patch174:bind-9.16-CVE-2021-25220-test.patch
Patch175:bind-9.16-CVE-2022-3080.patch
Patch176:bind-9.16-CVE-2022-38177.patch
Patch177:bind-9.16-CVE-2022-38178.patch
%{?systemd_ordering}
Requires: coreutils
@ -412,6 +415,9 @@ in HTML and PDF format.
%patch172 -p1 -b .CVE-2022-0396
%patch173 -p1 -b .CVE-2021-25220
%patch174 -p1 -b .CVE-2021-25220-test
%patch175 -p1 -b .CVE-2022-3080
%patch176 -p1 -b .CVE-2022-38177
%patch177 -p1 -b .CVE-2022-38178
%if %{with PKCS11}
%patch135 -p1 -b .config-pkcs11
@ -1131,6 +1137,11 @@ fi;
%endif
%changelog
* Thu Sep 22 2022 Petr Menšík <pemensik@redhat.com> - 32:9.16.23-0.9.1
- Fix possible serve-stale related crash (CVE-2022-3080)
- Fix memory leak in ECDSA verify processing (CVE-2022-38177)
- Fix memory leak in EdDSA verify processing (CVE-2022-38178)
* Mon Apr 11 2022 Petr Menšík <pemensik@redhat.com> - 32:9.16.23-0.9
- Tighten cache protection against record from forwarders (CVE-2021-25220)
- Include test of forwarders