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fix CVEs

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chengyechun 2024-08-03 17:17:01 +08:00
parent c879ea9511
commit 8f711a28d9
7 changed files with 797 additions and 1 deletions
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94
backport-0001-CVE-2024-1737.patch Normal file
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From fdabf4b9570a60688f9f7d1e88d885f7a3718bca Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Sur=C3=BD?= <ondrej@isc.org>
Date: Fri, 1 Mar 2024 08:26:07 +0100
Subject: [PATCH 1/3] Add a limit to the number of RRs in RRSets
Previously, the number of RRs in the RRSets were internally unlimited.
As the data structure that holds the RRs is just a linked list, and
there are places where we just walk through all of the RRs, adding an
RRSet with huge number of RRs inside would slow down processing of said
RRSets.
The fix for end-of-life branches make the limit compile-time only for
simplicity and the limit can be changed at the compile time by adding
following define to CFLAGS:
-DDNS_RDATASET_MAX_RECORDS=<limit>
(cherry picked from commit c5c4d00c38530390c9e1ae4c98b65fbbadfe9e5e)
Conflict:NA
Reference:https://gitlab.isc.org/isc-projects/bind9/-/commit/5360c90612abf51deb4a80b30e1da84fd61212a5
---
configure | 2 +-
configure.ac | 2 +-
lib/dns/rdataslab.c | 12 ++++++++++++
3 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/configure b/configure
index 4bbcaa3..9151d64 100755
--- a/configure
+++ b/configure
@@ -12173,7 +12173,7 @@ fi
XTARGETS=
case "$enable_developer" in
yes)
- STD_CDEFINES="$STD_CDEFINES -DISC_LIST_CHECKINIT=1"
+ STD_CDEFINES="$STD_CDEFINES -DISC_LIST_CHECKINIT=1 -DDNS_RDATASET_MAX_RECORDS=5000"
test "${enable_fixed_rrset+set}" = set || enable_fixed_rrset=yes
test "${enable_querytrace+set}" = set || enable_querytrace=yes
test "${enable_filter_aaaa+set}" = set || enable_filter_aaaa=yes
diff --git a/configure.ac b/configure.ac
index 285dfab..77c9b48 100644
--- a/configure.ac
+++ b/configure.ac
@@ -94,7 +94,7 @@ AC_ARG_ENABLE(developer,
XTARGETS=
case "$enable_developer" in
yes)
- STD_CDEFINES="$STD_CDEFINES -DISC_LIST_CHECKINIT=1"
+ STD_CDEFINES="$STD_CDEFINES -DISC_LIST_CHECKINIT=1 -DDNS_RDATASET_MAX_RECORDS=5000"
test "${enable_fixed_rrset+set}" = set || enable_fixed_rrset=yes
test "${enable_querytrace+set}" = set || enable_querytrace=yes
test "${enable_filter_aaaa+set}" = set || enable_filter_aaaa=yes
diff --git a/lib/dns/rdataslab.c b/lib/dns/rdataslab.c
index 7cd3855..22fe63e 100644
--- a/lib/dns/rdataslab.c
+++ b/lib/dns/rdataslab.c
@@ -115,6 +115,10 @@ fillin_offsets(unsigned char *offsetbase, unsigned int *offsettable,
}
#endif
+#ifndef DNS_RDATASET_MAX_RECORDS
+#define DNS_RDATASET_MAX_RECORDS 100
+#endif /* DNS_RDATASET_MAX_RECORDS */
+
isc_result_t
dns_rdataslab_fromrdataset(dns_rdataset_t *rdataset, isc_mem_t *mctx,
isc_region_t *region, unsigned int reservelen)
@@ -161,6 +165,10 @@ dns_rdataslab_fromrdataset(dns_rdataset_t *rdataset, isc_mem_t *mctx,
return (ISC_R_SUCCESS);
}
+ if (nitems > DNS_RDATASET_MAX_RECORDS) {
+ return (DNS_R_TOOMANYRECORDS);
+ }
+
if (nitems > 0xffff)
return (ISC_R_NOSPACE);
@@ -654,6 +662,10 @@ dns_rdataslab_merge(unsigned char *oslab, unsigned char *nslab,
#endif
INSIST(ocount > 0 && ncount > 0);
+ if (ocount + ncount > DNS_RDATASET_MAX_RECORDS) {
+ return (DNS_R_TOOMANYRECORDS);
+ }
+
#if DNS_RDATASET_FIXED
oncount = ncount;
#endif
--
2.33.0

125
backport-0002-CVE-2024-1737.patch Normal file
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From dfcadc2085c8844b5836aff2b5ea51fb60c34868 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Sur=C3=BD?= <ondrej@isc.org>
Date: Wed, 29 May 2024 08:43:39 +0200
Subject: [PATCH 2/3] Add a limit to the number of RR types for single name
Previously, the number of RR types for a single owner name was limited
only by the maximum number of the types (64k). As the data structure
that holds the RR types for the database node is just a linked list, and
there are places where we just walk through the whole list (again and
again), adding a large number of RR types for a single owner named with
would slow down processing of such name (database node).
Add a hard-coded limit (100) to cap the number of the RR types for a single
owner. The limit can be changed at the compile time by adding following
define to CFLAGS:
-DDNS_RBTDB_MAX_RTYPES=<limit>
Conflict:Context Adaptation
Reference:https://gitlab.isc.org/isc-projects/bind9/-/commit/5360c90612abf51deb4a80b30e1da84fd61212a5
---
configure | 2 +-
configure.ac | 2 +-
lib/dns/rbtdb.c | 17 +++++++++++++++++
3 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/configure b/configure
index 9151d64..3e1c868 100755
--- a/configure
+++ b/configure
@@ -12173,7 +12173,7 @@ fi
XTARGETS=
case "$enable_developer" in
yes)
- STD_CDEFINES="$STD_CDEFINES -DISC_LIST_CHECKINIT=1 -DDNS_RDATASET_MAX_RECORDS=5000"
+ STD_CDEFINES="$STD_CDEFINES -DISC_LIST_CHECKINIT=1 -DDNS_RDATASET_MAX_RECORDS=5000 -DDNS_RBTDB_MAX_RTYPES=5000"
test "${enable_fixed_rrset+set}" = set || enable_fixed_rrset=yes
test "${enable_querytrace+set}" = set || enable_querytrace=yes
test "${enable_filter_aaaa+set}" = set || enable_filter_aaaa=yes
diff --git a/configure.ac b/configure.ac
index 77c9b48..6844934 100644
--- a/configure.ac
+++ b/configure.ac
@@ -94,7 +94,7 @@ AC_ARG_ENABLE(developer,
XTARGETS=
case "$enable_developer" in
yes)
- STD_CDEFINES="$STD_CDEFINES -DISC_LIST_CHECKINIT=1 -DDNS_RDATASET_MAX_RECORDS=5000"
+ STD_CDEFINES="$STD_CDEFINES -DISC_LIST_CHECKINIT=1 -DDNS_RDATASET_MAX_RECORDS=5000 -DDNS_RBTDB_MAX_RTYPES=5000"
test "${enable_fixed_rrset+set}" = set || enable_fixed_rrset=yes
test "${enable_querytrace+set}" = set || enable_querytrace=yes
test "${enable_filter_aaaa+set}" = set || enable_filter_aaaa=yes
diff --git a/lib/dns/rbtdb.c b/lib/dns/rbtdb.c
index cd5cd9b..5e44653 100644
--- a/lib/dns/rbtdb.c
+++ b/lib/dns/rbtdb.c
@@ -6289,6 +6289,10 @@ update_recordsandbytes(bool add, rbtdb_version_t *rbtversion,
RWUNLOCK(&rbtversion->rwlock, isc_rwlocktype_write);
}
+#ifndef DNS_RBTDB_MAX_RTYPES
+#define DNS_RBTDB_MAX_RTYPES 100
+#endif /* DNS_RBTDB_MAX_RTYPES */
+
/*
* write lock on rbtnode must be held.
*/
@@ -6309,6 +6313,7 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
rbtdb_rdatatype_t negtype, sigtype;
dns_trust_t trust;
int idx;
+ uint32_t ntypes;
/*
* Add an rdatasetheader_t to a node.
@@ -6371,6 +6376,7 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
set_ttl(rbtdb, topheader, 0);
mark_header_ancient(rbtdb, topheader);
}
+ ntypes = 0;
goto find_header;
}
/*
@@ -6392,9 +6398,11 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
* check for an extant non-stale NODATA ncache
* entry which covers the same type as the RRSIG.
*/
+ ntypes = 0;
for (topheader = rbtnode->data;
topheader != NULL;
topheader = topheader->next) {
+ ntypes++;
if ((topheader->type ==
RBTDB_RDATATYPE_NCACHEANY) ||
(newheader->type == sigtype &&
@@ -6438,9 +6446,11 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
}
}
+ ntypes = 0;
for (topheader = rbtnode->data;
topheader != NULL;
topheader = topheader->next) {
+ ntypes++;
if (prio_type(topheader->type)) {
prioheader = topheader;
}
@@ -6807,6 +6817,13 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
/*
* No rdatasets of the given type exist at the node.
*/
+
+ if (ntypes > DNS_RBTDB_MAX_RTYPES) {
+ free_rdataset(rbtdb, rbtdb->common.mctx,
+ newheader);
+ return (ISC_R_QUOTA);
+ }
+
newheader->down = NULL;
if (prio_type(newheader->type)) {
--
2.33.0

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backport-0003-CVE-2024-1737.patch Normal file
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From b27c6bcce894786a8e082eafd59eccbf6f2731cb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Sur=C3=BD?= <ondrej@isc.org>
Date: Mon, 17 Jun 2024 11:40:40 +0200
Subject: [PATCH] Expand the list of the priority types and move it to db_p.h
Add HTTPS, SVCB, SRV, PTR, NAPTR, DNSKEY and TXT records to the list of
the priority types that are put at the beginning of the slabheader list
for faster access and to avoid eviction when there are more types than
the max-types-per-name limit.
Conflict:NA
Reference:https://gitlab.isc.org/isc-projects/bind9/-/commit/b27c6bcce894786a8e082eafd59eccbf6f2731cb
---
lib/dns/rbtdb.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/lib/dns/rbtdb.c b/lib/dns/rbtdb.c
index 5e44653..9babac2 100644
--- a/lib/dns/rbtdb.c
+++ b/lib/dns/rbtdb.c
@@ -1178,6 +1178,8 @@ prio_type(rbtdb_rdatatype_t type) {
case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_soa):
case dns_rdatatype_a:
case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_a):
+ case dns_rdatatype_mx:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_mx):
case dns_rdatatype_aaaa:
case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_aaaa):
case dns_rdatatype_nsec:
@@ -1190,6 +1192,22 @@ prio_type(rbtdb_rdatatype_t type) {
case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_ds):
case dns_rdatatype_cname:
case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_cname):
+ case dns_rdatatype_dname:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_dname):
+ case dns_rdatatype_avc:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_avc):
+ case dns_rdatatype_hip:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_hip):
+ case dns_rdatatype_dnskey:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_dnskey):
+ case dns_rdatatype_srv:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_srv):
+ case dns_rdatatype_txt:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_txt):
+ case dns_rdatatype_ptr:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_ptr):
+ case dns_rdatatype_naptr:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_naptr):
return (true);
}
return (false);
--
2.33.0

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backport-0004-CVE-2024-1737.patch Normal file
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@ -0,0 +1,185 @@
From 57cd34441a1b4ecc9874a4a106c2c95b8d7a3120 Mon Sep 17 00:00:00 2001
From: =?utf-8?b?T25kxZllaiBTdXLDvQ==?= <ondrej@isc.org>
Date: Mon, 17 Jun 2024 11:40:40 +0200
Subject: Be smarter about refusing to add many RR types to the database
Instead of outright refusing to add new RR types to the cache, be a bit
smarter:
1. If the new header type is in our priority list, we always add either
positive or negative entry at the beginning of the list.
2. If the new header type is negative entry, and we are over the limit,
we mark it as ancient immediately, so it gets evicted from the cache
as soon as possible.
3. Otherwise add the new header after the priority headers (or at the
head of the list).
4. If we are over the limit, evict the last entry on the normal header
list.
(cherry picked from commit 57cd34441a1b4ecc9874a4a106c2c95b8d7a3120)
Conflict:NA
Reference:https://gitlab.isc.org/isc-projects/bind9/-/commit/57cd34441a1b4ecc9874a4a106c2c95b8d7a3120
---
lib/dns/rbtdb.c | 71 ++++++++++++++++++++++++++++++++++++++++---------
1 file changed, 59 insertions(+), 12 deletions(-)
diff --git a/lib/dns/rbtdb.c b/lib/dns/rbtdb.c
index 9babac2..4d4b971 100644
--- a/lib/dns/rbtdb.c
+++ b/lib/dns/rbtdb.c
@@ -6311,6 +6311,26 @@ update_recordsandbytes(bool add, rbtdb_version_t *rbtversion,
#define DNS_RBTDB_MAX_RTYPES 100
#endif /* DNS_RBTDB_MAX_RTYPES */
+static bool
+overmaxtype(dns_rbtdb_t *rbtdb, uint32_t ntypes) {
+ UNUSED(rbtdb);
+
+ if (DNS_RBTDB_MAX_RTYPES == 0) {
+ return (false);
+ }
+
+ return (ntypes >= DNS_RBTDB_MAX_RTYPES);
+}
+
+static bool
+prio_header(rdatasetheader_t *header) {
+ if (NEGATIVE(header) && prio_type(RBTDB_RDATATYPE_EXT(header->type))) {
+ return (true);
+ }
+
+ return (prio_type(header->type));
+}
+
/*
* write lock on rbtnode must be held.
*/
@@ -6321,7 +6341,7 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
{
rbtdb_changed_t *changed = NULL;
rdatasetheader_t *topheader, *topheader_prev, *header, *sigheader;
- rdatasetheader_t *prioheader = NULL;
+ rdatasetheader_t *prioheader = NULL, *expireheader = NULL;
unsigned char *merged;
isc_result_t result;
bool header_nx;
@@ -6331,7 +6351,7 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
rbtdb_rdatatype_t negtype, sigtype;
dns_trust_t trust;
int idx;
- uint32_t ntypes;
+ uint32_t ntypes = 0;
/*
* Add an rdatasetheader_t to a node.
@@ -6394,7 +6414,6 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
set_ttl(rbtdb, topheader, 0);
mark_header_ancient(rbtdb, topheader);
}
- ntypes = 0;
goto find_header;
}
/*
@@ -6404,8 +6423,10 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
for (topheader = rbtnode->data;
topheader != NULL;
topheader = topheader->next)
- if (topheader->type == sigtype)
+ if (topheader->type == sigtype) {
sigheader = topheader;
+ break;
+ }
negtype = RBTDB_RDATATYPE_VALUE(covers, 0);
} else {
/*
@@ -6416,11 +6437,9 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
* check for an extant non-stale NODATA ncache
* entry which covers the same type as the RRSIG.
*/
- ntypes = 0;
for (topheader = rbtnode->data;
topheader != NULL;
topheader = topheader->next) {
- ntypes++;
if ((topheader->type ==
RBTDB_RDATATYPE_NCACHEANY) ||
(newheader->type == sigtype &&
@@ -6464,12 +6483,16 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
}
}
- ntypes = 0;
for (topheader = rbtnode->data;
topheader != NULL;
topheader = topheader->next) {
- ntypes++;
- if (prio_type(topheader->type)) {
+ if (IS_CACHE(rbtdb) && ACTIVE(topheader, now)) {
+ ++ntypes;
+ expireheader = topheader;
+ } else if (!IS_CACHE(rbtdb)) {
+ ++ntypes;
+ }
+ if (prio_header(topheader)) {
prioheader = topheader;
}
if (topheader->type == newheader->type ||
@@ -6835,8 +6858,7 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
/*
* No rdatasets of the given type exist at the node.
*/
-
- if (ntypes > DNS_RBTDB_MAX_RTYPES) {
+ if (!IS_CACHE(rbtdb) && overmaxtype(rbtdb, ntypes)) {
free_rdataset(rbtdb, rbtdb->common.mctx,
newheader);
return (ISC_R_QUOTA);
@@ -6844,7 +6866,7 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
newheader->down = NULL;
- if (prio_type(newheader->type)) {
+ if (prio_header(newheader)) {
/* This is a priority type, prepend it */
newheader->next = rbtnode->data;
rbtnode->data = newheader;
@@ -6857,6 +6879,31 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
newheader->next = rbtnode->data;
rbtnode->data = newheader;
}
+
+ if (IS_CACHE(rbtdb) && overmaxtype(rbtdb, ntypes)) {
+ if (expireheader == NULL) {
+ expireheader = newheader;
+ }
+ if (NEGATIVE(newheader) &&
+ !prio_header(newheader))
+ {
+ /*
+ * Add the new non-priority negative
+ * header to the database only
+ * temporarily.
+ */
+ expireheader = newheader;
+ }
+
+ set_ttl(rbtdb, expireheader, 0);
+ mark_header_ancient(rbtdb, expireheader);
+ /*
+ * FIXME: In theory, we should mark the RRSIG
+ * and the header at the same time, but there is
+ * no direct link between those two header, so
+ * we would have to check the whole list again.
+ */
+ }
}
}
--
2.33.0

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backport-CVE-2024-1975.patch Normal file
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@ -0,0 +1,220 @@
From bef3d2cca3552100bbe44790c8c1a4f5bef06798 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20=C5=A0pa=C4=8Dek?= <pspacek@isc.org>
Date: Thu, 16 May 2024 12:10:41 +0200
Subject: [PATCH] Remove support for SIG(0) message verification
Conflict:Case adaptation and some documents are not incorporated.
Reference:https://downloads.isc.org/isc/bind9/9.18.28/patches/0003-CVE-2024-1975.patch
---
bin/tests/system/tsiggss/authsock.pl | 5 ++
bin/tests/system/tsiggss/tests.sh | 12 ++--
bin/tests/system/upforwd/tests.sh | 9 ++-
lib/dns/message.c | 91 ++--------------------------
4 files changed, 24 insertions(+), 93 deletions(-)
diff --git a/bin/tests/system/tsiggss/authsock.pl b/bin/tests/system/tsiggss/authsock.pl
index 57a72b2..3afaa83 100644
--- a/bin/tests/system/tsiggss/authsock.pl
+++ b/bin/tests/system/tsiggss/authsock.pl
@@ -31,6 +31,10 @@ if (!defined($path)) {
exit(1);
}
+# Enable output autoflush so that it's not lost when the parent sends TERM.
+select STDOUT;
+$| = 1;
+
unlink($path);
my $server = IO::Socket::UNIX->new(Local => $path, Type => SOCK_STREAM, Listen => 8) or
die "unable to create socket $path";
@@ -48,6 +52,7 @@ if ($timeout != 0) {
}
while (my $client = $server->accept()) {
+ printf("accept()\n");
$client->recv(my $buf, 8, 0);
my ($version, $req_len) = unpack('N N', $buf);
diff --git a/bin/tests/system/tsiggss/tests.sh b/bin/tests/system/tsiggss/tests.sh
index e4c32dc..2d67533 100644
--- a/bin/tests/system/tsiggss/tests.sh
+++ b/bin/tests/system/tsiggss/tests.sh
@@ -116,7 +116,7 @@ status=$((status+ret))
echo "I:testing external update policy (CNAME) with auth sock ($n)"
ret=0
-$PERL ./authsock.pl --type=CNAME --path=ns1/auth.sock --pidfile=authsock.pid --timeout=120 > /dev/null 2>&1 &
+$PERL ./authsock.pl --type=CNAME --path=ns1/auth.sock --pidfile=authsock.pid --timeout=120 > authsock.log 2>&1 &
sleep 1
test_update $n testcname.example.nil. CNAME "86400 CNAME testdenied.example.nil" "testdenied" || ret=1
n=$((n+1))
@@ -130,17 +130,19 @@ n=$((n+1))
if [ "$ret" -ne 0 ]; then echo_i "failed"; fi
status=$((status+ret))
-echo "I:testing external policy with SIG(0) key ($n)"
+echo "I:testing external policy with unsupported SIG(0) key ($n)"
ret=0
-$NSUPDATE -R $RANDFILE -k ns1/Kkey.example.nil.*.private <<END > /dev/null 2>&1 || ret=1
+$NSUPDATE -R $RANDFILE -d -k ns1/Kkey.example.nil.*.private <<END > nsupdate.out${n} 2>&1 || true
+debug
server 10.53.0.1 ${PORT}
zone example.nil
update add fred.example.nil 120 cname foo.bar.
send
END
output=`$DIG $DIGOPTS +short cname fred.example.nil.`
-[ -n "$output" ] || ret=1
-[ $ret -eq 0 ] || echo "I:failed"
+# update must have failed - SIG(0) signer is not supported
+[ -n "$output" ] && ret=1
+grep -F "signer=key.example.nil" authsock.log >/dev/null && ret=1
n=$((n+1))
if [ "$ret" -ne 0 ]; then echo_i "failed"; fi
status=$((status+ret))
diff --git a/bin/tests/system/upforwd/tests.sh b/bin/tests/system/upforwd/tests.sh
index 9adae82..2baff04 100644
--- a/bin/tests/system/upforwd/tests.sh
+++ b/bin/tests/system/upforwd/tests.sh
@@ -177,18 +177,21 @@ n=`expr $n + 1`
if test -f keyname
then
- echo_i "checking update forwarding to with sig0 ($n)"
+ echo_i "checking update forwarding to with sig0 (expected to fail) ($n)"
ret=0
keyname=`cat keyname`
- $NSUPDATE -k $keyname.private -- - <<EOF
+ # SIG(0) is removed, update is expected to fail.
+ {
+ $NSUPDATE -k $keyname.private -- - <<EOF
server 10.53.0.3 ${PORT}
zone example2
update add unsigned.example2. 600 A 10.10.10.1
update add unsigned.example2. 600 TXT Foo
send
EOF
+ } >nsupdate.out.$n 2>&1 && ret=1
$DIG -p ${PORT} unsigned.example2 A @10.53.0.1 > dig.out.ns1.test$n
- grep "status: NOERROR" dig.out.ns1.test$n > /dev/null || ret=1
+ grep "status: NOERROR" dig.out.ns1.test$n > /dev/null && ret=1
if [ $ret != 0 ] ; then echo_i "failed"; fi
status=`expr $status + $ret`
n=`expr $n + 1`
diff --git a/lib/dns/message.c b/lib/dns/message.c
index 0d94250..5568202 100644
--- a/lib/dns/message.c
+++ b/lib/dns/message.c
@@ -3214,102 +3214,23 @@ dns_message_dumpsig(dns_message_t *msg, char *txt1) {
isc_result_t
dns_message_checksig(dns_message_t *msg, dns_view_t *view) {
- isc_buffer_t b, msgb;
+ isc_buffer_t msgb;
REQUIRE(DNS_MESSAGE_VALID(msg));
- if (msg->tsigkey == NULL && msg->tsig == NULL && msg->sig0 == NULL)
+ if (msg->tsigkey == NULL && msg->tsig == NULL)
return (ISC_R_SUCCESS);
INSIST(msg->saved.base != NULL);
isc_buffer_init(&msgb, msg->saved.base, msg->saved.length);
isc_buffer_add(&msgb, msg->saved.length);
- if (msg->tsigkey != NULL || msg->tsig != NULL) {
#ifdef SKAN_MSG_DEBUG
- dns_message_dumpsig(msg, "dns_message_checksig#1");
+ dns_message_dumpsig(msg, "dns_message_checksig#1");
#endif
- if (view != NULL)
- return (dns_view_checksig(view, &msgb, msg));
- else
- return (dns_tsig_verify(&msgb, msg, NULL, NULL));
+ if (view != NULL) {
+ return (dns_view_checksig(view, &msgb, msg));
} else {
- dns_rdata_t rdata = DNS_RDATA_INIT;
- dns_rdata_sig_t sig;
- dns_rdataset_t keyset;
- isc_result_t result;
-
- result = dns_rdataset_first(msg->sig0);
- INSIST(result == ISC_R_SUCCESS);
- dns_rdataset_current(msg->sig0, &rdata);
-
- /*
- * This can occur when the message is a dynamic update, since
- * the rdata length checking is relaxed. This should not
- * happen in a well-formed message, since the SIG(0) is only
- * looked for in the additional section, and the dynamic update
- * meta-records are in the prerequisite and update sections.
- */
- if (rdata.length == 0)
- return (ISC_R_UNEXPECTEDEND);
-
- result = dns_rdata_tostruct(&rdata, &sig, msg->mctx);
- if (result != ISC_R_SUCCESS)
- return (result);
-
- dns_rdataset_init(&keyset);
- if (view == NULL)
- return (DNS_R_KEYUNAUTHORIZED);
- result = dns_view_simplefind(view, &sig.signer,
- dns_rdatatype_key /* SIG(0) */,
- 0, 0, false, &keyset, NULL);
-
- if (result != ISC_R_SUCCESS) {
- /* XXXBEW Should possibly create a fetch here */
- result = DNS_R_KEYUNAUTHORIZED;
- goto freesig;
- } else if (keyset.trust < dns_trust_secure) {
- /* XXXBEW Should call a validator here */
- result = DNS_R_KEYUNAUTHORIZED;
- goto freesig;
- }
- result = dns_rdataset_first(&keyset);
- INSIST(result == ISC_R_SUCCESS);
- for (;
- result == ISC_R_SUCCESS;
- result = dns_rdataset_next(&keyset))
- {
- dst_key_t *key = NULL;
-
- dns_rdata_reset(&rdata);
- dns_rdataset_current(&keyset, &rdata);
- isc_buffer_init(&b, rdata.data, rdata.length);
- isc_buffer_add(&b, rdata.length);
-
- result = dst_key_fromdns(&sig.signer, rdata.rdclass,
- &b, view->mctx, &key);
- if (result != ISC_R_SUCCESS)
- continue;
- if (dst_key_alg(key) != sig.algorithm ||
- dst_key_id(key) != sig.keyid ||
- !(dst_key_proto(key) == DNS_KEYPROTO_DNSSEC ||
- dst_key_proto(key) == DNS_KEYPROTO_ANY))
- {
- dst_key_free(&key);
- continue;
- }
- result = dns_dnssec_verifymessage(&msgb, msg, key);
- dst_key_free(&key);
- if (result == ISC_R_SUCCESS)
- break;
- }
- if (result == ISC_R_NOMORE)
- result = DNS_R_KEYUNAUTHORIZED;
-
- freesig:
- if (dns_rdataset_isassociated(&keyset))
- dns_rdataset_disassociate(&keyset);
- dns_rdata_freestruct(&sig);
- return (result);
+ return (dns_tsig_verify(&msgb, msg, NULL, NULL));
}
}
--
2.33.0

98
backport-optimize-the-slabheader-placement-for-certain-RRtype.patch Normal file
View File

@ -0,0 +1,98 @@
From 8ef414a7f38a04cfc11df44adaedaf3126fa3878 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Sur=C3=BD?= <ondrej@isc.org>
Date: Mon, 29 Jan 2024 16:36:30 +0100
Subject: [PATCH] Optimize the slabheader placement for certain RRTypes
Mark the infrastructure RRTypes as "priority" types and place them at
the beginning of the rdataslab header data graph. The non-priority
types either go right after the priority types (if any).
(cherry picked from commit 3ac482be7fd058d284e89873021339579fad0615)
Conflict:NA
Reference:https://gitlab.isc.org/isc-projects/bind9/-/commit/8ef414a7f38a04cfc11df44adaedaf3126fa3878
---
lib/dns/rbtdb.c | 44 ++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 42 insertions(+), 2 deletions(-)
diff --git a/lib/dns/rbtdb.c b/lib/dns/rbtdb.c
index 6606769..cd5cd9b 100644
--- a/lib/dns/rbtdb.c
+++ b/lib/dns/rbtdb.c
@@ -1171,6 +1171,30 @@ set_ttl(dns_rbtdb_t *rbtdb, rdatasetheader_t *header, dns_ttl_t newttl) {
isc_heap_decreased(heap, header->heap_index);
}
+static bool
+prio_type(rbtdb_rdatatype_t type) {
+ switch (type) {
+ case dns_rdatatype_soa:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_soa):
+ case dns_rdatatype_a:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_a):
+ case dns_rdatatype_aaaa:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_aaaa):
+ case dns_rdatatype_nsec:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_nsec):
+ case dns_rdatatype_nsec3:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_nsec3):
+ case dns_rdatatype_ns:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_ns):
+ case dns_rdatatype_ds:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_ds):
+ case dns_rdatatype_cname:
+ case RBTDB_RDATATYPE_VALUE(dns_rdatatype_rrsig, dns_rdatatype_cname):
+ return (true);
+ }
+ return (false);
+}
+
/*%
* These functions allow the heap code to rank the priority of each
* element. It returns true if v1 happens "sooner" than v2.
@@ -6275,6 +6299,7 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
{
rbtdb_changed_t *changed = NULL;
rdatasetheader_t *topheader, *topheader_prev, *header, *sigheader;
+ rdatasetheader_t *prioheader = NULL;
unsigned char *merged;
isc_result_t result;
bool header_nx;
@@ -6416,6 +6441,9 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
for (topheader = rbtnode->data;
topheader != NULL;
topheader = topheader->next) {
+ if (prio_type(topheader->type)) {
+ prioheader = topheader;
+ }
if (topheader->type == newheader->type ||
topheader->type == negtype)
break;
@@ -6779,9 +6807,21 @@ add32(dns_rbtdb_t *rbtdb, dns_rbtnode_t *rbtnode, rbtdb_version_t *rbtversion,
/*
* No rdatasets of the given type exist at the node.
*/
- newheader->next = rbtnode->data;
newheader->down = NULL;
- rbtnode->data = newheader;
+
+ if (prio_type(newheader->type)) {
+ /* This is a priority type, prepend it */
+ newheader->next = rbtnode->data;
+ rbtnode->data = newheader;
+ } else if (prioheader != NULL) {
+ /* Append after the priority headers */
+ newheader->next = prioheader->next;
+ prioheader->next = newheader;
+ } else {
+ /* There were no priority headers */
+ newheader->next = rbtnode->data;
+ rbtnode->data = newheader;
+ }
}
}
--
2.33.0

20
bind.spec
View File

@ -19,7 +19,7 @@ Name: bind
Summary: Domain Name System (DNS) Server (named)
License: MPLv2.0
Version: 9.11.21
Release: 18
Release: 19
Epoch: 32
Url: http://www.isc.org/products/BIND/
Source0: https://ftp.isc.org/isc/bind9/9.11.21/bind-%{version}.tar.gz
@ -244,6 +244,12 @@ Patch6068: backport-CVE-2022-38178.patch
Patch6069: backport-CVE-2023-2828.patch
Patch6070: backport-CVE-2023-3341.patch
Patch6071:backport-CVE-2024-1975.patch
Patch6072:backport-optimize-the-slabheader-placement-for-certain-RRtype.patch
Patch6073:backport-0001-CVE-2024-1737.patch
Patch6074:backport-0002-CVE-2024-1737.patch
Patch6075:backport-0003-CVE-2024-1737.patch
Patch6076:backport-0004-CVE-2024-1737.patch
%description
Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name
@ -527,6 +533,12 @@ cp -a %{SOURCE29} lib/dns/tests/testdata/dstrandom/random.data
%patch6069 -p1
%patch6070 -p1
%patch6071 -p1
%patch6072 -p1
%patch6073 -p1
%patch6074 -p1
%patch6075 -p1
%patch6076 -p1
%patch199 -p1
@ -1308,6 +1320,12 @@ rm -rf ${RPM_BUILD_ROOT}
%changelog
* Fri Aug 02 2024 chengyechun <chengyechun1@huawei.com> - 32:9.11.21-19
- Type:CVE
- CVE:CVE-2024-1975,CVE-2024-1737
- SUG:NA
- DESC:fix CVE-2024-1975 CVE-2024-1737
* Thu Sep 28 2023 sunhai <sunhai10@huawei.com> - 32:9.11.21-18
- Type:bugfix
- ID:NA