Import tests for large DNS messages fix
Tests part of fixes of CVE-2023-4408. Related: RHEL-25342 ; Related: CVE-2023-4408
This commit is contained in:
Petr Menšík
parent
e919059dfa
commit
5dc319b2a8
88
bind-9.16-CVE-2023-4408-test1.patch
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88
bind-9.16-CVE-2023-4408-test1.patch
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@ -0,0 +1,88 @@
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From d258422d3e653621ce6340ba9af0153f8d4e8c07 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Ond=C5=99ej=20Sur=C3=BD?= <ondrej@isc.org>
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Date: Sun, 11 Feb 2024 00:49:32 +0100
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Subject: [PATCH] Test case insensitive matching in isc_ht hash table
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implementation
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The case insensitive matching in isc_ht was basically completely broken
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as only the hashvalue computation was case insensitive, but the key
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comparison was always case sensitive.
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Import only test part from upstream.
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(cherry picked from commit 175655b771fd17b06dfb8cfb29eaadf0f3b6a8b5)
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(cherry picked from upstream commit f493a8394102b0aeb101d5dc2f963004c8741175)
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---
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lib/isc/tests/ht_test.c | 53 +++++++++++++++++++++++++++++++++++++++++
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1 file changed, 53 insertions(+)
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diff --git a/lib/isc/tests/ht_test.c b/lib/isc/tests/ht_test.c
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index 74d95c1..65502b5 100644
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--- a/lib/isc/tests/ht_test.c
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+++ b/lib/isc/tests/ht_test.c
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@@ -334,9 +334,62 @@ isc_ht_iterator_test(void **state) {
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test_ht_iterator();
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}
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+static void
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+isc_ht_case(void **state) {
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+ UNUSED(state);
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+
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+ isc_ht_t *ht = NULL;
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+ void *f = NULL;
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+ isc_result_t result = ISC_R_UNSET;
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+
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+ unsigned char lower[16] = { "test case" };
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+ unsigned char same[16] = { "test case" };
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+ unsigned char upper[16] = { "TEST CASE" };
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+ unsigned char mixed[16] = { "tEsT CaSe" };
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+
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+ isc_ht_init(&ht, test_mctx, 8, ISC_HT_CASE_SENSITIVE);
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+ assert_non_null(ht);
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+
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+ result = isc_ht_add(ht, lower, 16, (void *)lower);
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+ assert_int_equal(result, ISC_R_SUCCESS);
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+
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+ result = isc_ht_add(ht, same, 16, (void *)same);
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+ assert_int_equal(result, ISC_R_EXISTS);
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+
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+ result = isc_ht_add(ht, upper, 16, (void *)upper);
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+ assert_int_equal(result, ISC_R_SUCCESS);
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+
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+ result = isc_ht_find(ht, mixed, 16, &f);
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+ assert_int_equal(result, ISC_R_NOTFOUND);
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+ assert_null(f);
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+
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+ isc_ht_destroy(&ht);
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+ assert_null(ht);
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+
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+ isc_ht_init(&ht, test_mctx, 8, ISC_HT_CASE_INSENSITIVE);
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+ assert_non_null(ht);
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+
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+ result = isc_ht_add(ht, lower, 16, (void *)lower);
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+ assert_int_equal(result, ISC_R_SUCCESS);
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+
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+ result = isc_ht_add(ht, same, 16, (void *)same);
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+ assert_int_equal(result, ISC_R_EXISTS);
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+
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+ result = isc_ht_add(ht, upper, 16, (void *)upper);
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+ assert_int_equal(result, ISC_R_EXISTS);
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+
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+ result = isc_ht_find(ht, mixed, 16, &f);
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+ assert_int_equal(result, ISC_R_SUCCESS);
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+ assert_ptr_equal(f, &lower);
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+
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+ isc_ht_destroy(&ht);
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+ assert_null(ht);
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+}
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+
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int
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main(void) {
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const struct CMUnitTest tests[] = {
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+ cmocka_unit_test(isc_ht_case),
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cmocka_unit_test(isc_ht_20),
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cmocka_unit_test(isc_ht_8),
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cmocka_unit_test(isc_ht_1),
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--
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2.43.0
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75
bind-9.16-CVE-2023-4408-test2.patch
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75
bind-9.16-CVE-2023-4408-test2.patch
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@ -0,0 +1,75 @@
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From aa1b0fc4b24d26233db30c85ae3609e54e9fa6d2 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Ond=C5=99ej=20Sur=C3=BD?= <ondrej@isc.org>
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Date: Sun, 11 Feb 2024 09:13:43 +0100
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Subject: [PATCH] Add a system test for mixed-case data for the same owner
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We were missing a test where a single owner name would have multiple
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types with a different case. The generated RRSIGs and NSEC records will
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then have different case than the signed records and message parser have
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to cope with that and treat everything as the same owner.
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(cherry picked from commit a114042059ecbbc94ae0f604ca681323a75af480)
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(cherry picked from upstream commit b9c10a194da3358204f5ba7d91e55332db435614)
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---
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bin/tests/system/dnssec/ns3/secure.example.db.in | 5 +++++
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bin/tests/system/dnssec/ns3/sign.sh | 4 +++-
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bin/tests/system/dnssec/tests.sh | 15 +++++++++++++++
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3 files changed, 23 insertions(+), 1 deletion(-)
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diff --git a/bin/tests/system/dnssec/ns3/secure.example.db.in b/bin/tests/system/dnssec/ns3/secure.example.db.in
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index 27f2b24..599566e 100644
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--- a/bin/tests/system/dnssec/ns3/secure.example.db.in
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+++ b/bin/tests/system/dnssec/ns3/secure.example.db.in
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@@ -45,3 +45,8 @@ rrsigonly A 10.0.0.29
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cnameandkey CNAME @
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cnamenokey CNAME @
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dnameandkey DNAME @
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+
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+mixedcase A 10.0.0.30
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+mixedCASE TXT "mixed case"
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+MIXEDcase AAAA 2002::
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+mIxEdCaSe LOC 37 52 56.788 N 121 54 55.02 W 1120m 10m 100m 10m
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diff --git a/bin/tests/system/dnssec/ns3/sign.sh b/bin/tests/system/dnssec/ns3/sign.sh
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index 80d412e..d94f382 100644
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--- a/bin/tests/system/dnssec/ns3/sign.sh
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+++ b/bin/tests/system/dnssec/ns3/sign.sh
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@@ -86,7 +86,9 @@ keyname=$("$KEYGEN" -q -a "$DEFAULT_ALGORITHM" -b "$DEFAULT_BITS" -n zone "$zone
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cat "$infile" "$cnameandkey.key" "$dnameandkey.key" "$keyname.key" > "$zonefile"
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-"$SIGNER" -P -o "$zone" "$zonefile" > /dev/null
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+"$SIGNER" -P -D -o "$zone" "$zonefile" >/dev/null
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+cat "$zonefile" "$zonefile".signed >"$zonefile".tmp
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+mv "$zonefile".tmp "$zonefile".signed
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zone=bogus.example.
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infile=bogus.example.db.in
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diff --git a/bin/tests/system/dnssec/tests.sh b/bin/tests/system/dnssec/tests.sh
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index fe95c8d..0c03970 100644
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--- a/bin/tests/system/dnssec/tests.sh
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+++ b/bin/tests/system/dnssec/tests.sh
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@@ -762,6 +762,21 @@ n=$((n+1))
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test "$ret" -eq 0 || echo_i "failed"
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status=$((status+ret))
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+echo_i "checking mixed-case positive validation ($n)"
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+ret=0
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+for type in a txt aaaa loc; do
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+ dig_with_opts +noauth mixedcase.secure.example. \
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+ @10.53.0.3 $type >dig.out.$type.ns3.test$n || ret=1
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+ dig_with_opts +noauth mixedcase.secure.example. \
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+ @10.53.0.4 $type >dig.out.$type.ns4.test$n || ret=1
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+ digcomp --lc dig.out.$type.ns3.test$n dig.out.$type.ns4.test$n || ret=1
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+ grep "status: NOERROR" dig.out.$type.ns4.test$n >/dev/null || ret=1
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+ grep "flags:.*ad.*QUERY" dig.out.$type.ns4.test$n >/dev/null || ret=1
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+done
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+n=$((n + 1))
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+test "$ret" -eq 0 || echo_i "failed"
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+status=$((status + ret))
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+
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echo_i "checking multi-stage positive validation NSEC/NSEC3 ($n)"
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ret=0
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dig_with_opts +noauth a.nsec3.example. \
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--
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2.43.0
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11
bind.spec
11
bind.spec
@ -51,7 +51,7 @@ Summary: The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) serv
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Name: bind
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License: MPLv2.0
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Version: 9.16.23
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Release: 16%{?dist}
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Release: 17%{?dist}
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Epoch: 32
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Url: https://www.isc.org/downloads/bind/
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#
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@ -140,6 +140,10 @@ Patch195: bind-9.16-CVE-2023-5517.patch
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Patch196: bind-9.16-CVE-2023-5679.patch
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Patch197: bind-9.16-CVE-2023-6516.patch
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Patch198: bind-9.16-CVE-2023-50387.patch
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# https://gitlab.isc.org/isc-projects/bind9/commit/f493a8394102b0aeb101d5dc2f963004c8741175
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Patch199: bind-9.16-CVE-2023-4408-test1.patch
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# https://gitlab.isc.org/isc-projects/bind9/commit/b9c10a194da3358204f5ba7d91e55332db435614
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Patch200: bind-9.16-CVE-2023-4408-test2.patch
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%{?systemd_ordering}
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Requires: coreutils
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@ -466,6 +470,8 @@ in HTML and PDF format.
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%patch196 -p1 -b .CVE-2023-5679
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%patch197 -p1 -b .CVE-2023-6516
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%patch198 -p1 -b .CVE-2023-50387
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%patch199 -p1
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%patch200 -p1
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%if %{with PKCS11}
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%patch135 -p1 -b .config-pkcs11
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@ -1189,6 +1195,9 @@ fi;
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%endif
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%changelog
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* Mon Feb 19 2024 Petr Menšík <pemensik@redhat.com> - 32:9.16.23-17
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- Import tests for large DNS messages fix
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* Mon Feb 12 2024 Petr Menšík <pemensik@redhat.com> - 32:9.16.23-16
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- Prevent increased CPU load on large DNS messages (CVE-2023-4408)
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- Prevent assertion failure when nxdomain-redirect is used with
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