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import bind-9.16.23-11.el9_2.2

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i9c changed/i9c/bind-9.16.23-11.el9_2.2
MSVSphere Packaging Team 1 year ago
parent dcfeef405b
commit a7c33f0154
2 changed files with 174 additions and 1 deletions
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168
SOURCES/bind-9.16-CVE-2023-3341.patch
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@ -0,0 +1,168 @@
From b137e12dc8118cddee20e372e480a495585e72b6 Mon Sep 17 00:00:00 2001
From: Petr Mensik <pemensik@redhat.com>
Date: Tue, 19 Sep 2023 12:44:31 +0200
Subject: [PATCH] Fix CVE-2023-3341
6245. [security] Limit the amount of recursion that can be performed
by isccc_cc_fromwire. (CVE-2023-3341) [GL #4152]
---
lib/isccc/cc.c | 39 ++++++++++++++++++++++++--------
lib/isccc/include/isccc/result.h | 4 +++-
lib/isccc/result.c | 4 +++-
3 files changed, 35 insertions(+), 12 deletions(-)
diff --git a/lib/isccc/cc.c b/lib/isccc/cc.c
index 0be28b9057..3744d0f037 100644
--- a/lib/isccc/cc.c
+++ b/lib/isccc/cc.c
@@ -50,6 +50,10 @@
#define MAX_TAGS 256
#define DUP_LIFETIME 900
+#ifndef ISCCC_MAXDEPTH
+#define ISCCC_MAXDEPTH \
+ 10 /* Big enough for rndc which just sends a string each way. */
+#endif
typedef isccc_sexpr_t *sexpr_ptr;
@@ -480,19 +484,25 @@ verify(isccc_sexpr_t *alist, unsigned char *data, unsigned int length,
static isc_result_t
table_fromwire(isccc_region_t *source, isccc_region_t *secret,
- uint32_t algorithm, isccc_sexpr_t **alistp);
+ uint32_t algorithm, unsigned int depth, isccc_sexpr_t **alistp);
static isc_result_t
-list_fromwire(isccc_region_t *source, isccc_sexpr_t **listp);
+list_fromwire(isccc_region_t *source, unsigned int depth,
+ isccc_sexpr_t **listp);
static isc_result_t
-value_fromwire(isccc_region_t *source, isccc_sexpr_t **valuep) {
+value_fromwire(isccc_region_t *source, unsigned int depth,
+ isccc_sexpr_t **valuep) {
unsigned int msgtype;
uint32_t len;
isccc_sexpr_t *value;
isccc_region_t active;
isc_result_t result;
+ if (depth > ISCCC_MAXDEPTH) {
+ return (ISCCC_R_MAXDEPTH);
+ }
+
if (REGION_SIZE(*source) < 1 + 4) {
return (ISC_R_UNEXPECTEDEND);
}
@@ -513,9 +523,9 @@ value_fromwire(isccc_region_t *source, isccc_sexpr_t **valuep) {
result = ISC_R_NOMEMORY;
}
} else if (msgtype == ISCCC_CCMSGTYPE_TABLE) {
- result = table_fromwire(&active, NULL, 0, valuep);
+ result = table_fromwire(&active, NULL, 0, depth + 1, valuep);
} else if (msgtype == ISCCC_CCMSGTYPE_LIST) {
- result = list_fromwire(&active, valuep);
+ result = list_fromwire(&active, depth + 1, valuep);
} else {
result = ISCCC_R_SYNTAX;
}
@@ -525,7 +535,7 @@ value_fromwire(isccc_region_t *source, isccc_sexpr_t **valuep) {
static isc_result_t
table_fromwire(isccc_region_t *source, isccc_region_t *secret,
- uint32_t algorithm, isccc_sexpr_t **alistp) {
+ uint32_t algorithm, unsigned int depth, isccc_sexpr_t **alistp) {
char key[256];
uint32_t len;
isc_result_t result;
@@ -535,6 +545,10 @@ table_fromwire(isccc_region_t *source, isccc_region_t *secret,
REQUIRE(alistp != NULL && *alistp == NULL);
+ if (depth > ISCCC_MAXDEPTH) {
+ return (ISCCC_R_MAXDEPTH);
+ }
+
checksum_rstart = NULL;
first_tag = true;
alist = isccc_alist_create();
@@ -551,7 +565,7 @@ table_fromwire(isccc_region_t *source, isccc_region_t *secret,
GET_MEM(key, len, source->rstart);
key[len] = '\0'; /* Ensure NUL termination. */
value = NULL;
- result = value_fromwire(source, &value);
+ result = value_fromwire(source, depth + 1, &value);
if (result != ISC_R_SUCCESS) {
goto bad;
}
@@ -589,14 +603,19 @@ bad:
}
static isc_result_t
-list_fromwire(isccc_region_t *source, isccc_sexpr_t **listp) {
+list_fromwire(isccc_region_t *source, unsigned int depth,
+ isccc_sexpr_t **listp) {
isccc_sexpr_t *list, *value;
isc_result_t result;
+ if (depth > ISCCC_MAXDEPTH) {
+ return (ISCCC_R_MAXDEPTH);
+ }
+
list = NULL;
while (!REGION_EMPTY(*source)) {
value = NULL;
- result = value_fromwire(source, &value);
+ result = value_fromwire(source, depth + 1, &value);
if (result != ISC_R_SUCCESS) {
isccc_sexpr_free(&list);
return (result);
@@ -628,7 +647,7 @@ isccc_cc_fromwire(isccc_region_t *source, isccc_sexpr_t **alistp,
return (ISCCC_R_UNKNOWNVERSION);
}
- return (table_fromwire(source, secret, algorithm, alistp));
+ return (table_fromwire(source, secret, algorithm, 0, alistp));
}
static isc_result_t
diff --git a/lib/isccc/include/isccc/result.h b/lib/isccc/include/isccc/result.h
index 5346babefc..5b6a876d1c 100644
--- a/lib/isccc/include/isccc/result.h
+++ b/lib/isccc/include/isccc/result.h
@@ -46,8 +46,10 @@
#define ISCCC_R_CLOCKSKEW (ISC_RESULTCLASS_ISCCC + 4)
/*% Duplicate */
#define ISCCC_R_DUPLICATE (ISC_RESULTCLASS_ISCCC + 5)
+/*% Maximum recursion depth */
+#define ISCCC_R_MAXDEPTH (ISC_RESULTCLASS_ISCCC + 6)
-#define ISCCC_R_NRESULTS 6 /*%< Number of results */
+#define ISCCC_R_NRESULTS 7 /*%< Number of results */
ISC_LANG_BEGINDECLS
diff --git a/lib/isccc/result.c b/lib/isccc/result.c
index 9285435209..1956cb1655 100644
--- a/lib/isccc/result.c
+++ b/lib/isccc/result.c
@@ -36,12 +36,14 @@ static const char *text[ISCCC_R_NRESULTS] = {
"bad auth", /* 3 */
"expired", /* 4 */
"clock skew", /* 5 */
- "duplicate" /* 6 */
+ "duplicate", /* 6 */
+ "max depth" /* 7 */
};
static const char *ids[ISCCC_R_NRESULTS] = {
"ISCCC_R_UNKNOWNVERSION", "ISCCC_R_SYNTAX", "ISCCC_R_BADAUTH",
"ISCCC_R_EXPIRED", "ISCCC_R_CLOCKSKEW", "ISCCC_R_DUPLICATE",
+ "ISCCC_R_MAXDEPTH"
};
#define ISCCC_RESULT_RESULTSET 2
--
2.41.0

7
SPECS/bind.spec
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@ -51,7 +51,7 @@ Summary: The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) serv
Name: bind
License: MPLv2.0
Version: 9.16.23
Release: 11%{?dist}.1
Release: 11%{?dist}.2
Epoch: 32
Url: https://www.isc.org/downloads/bind/
#
@ -126,6 +126,7 @@ Patch186: bind-9.16-CVE-2022-3736.patch
Patch187: bind-9.16-CVE-2022-3924.patch
# https://gitlab.isc.org/isc-projects/bind9/commit/f1d9e9ee3859976f403914d20ad2a10855343702
Patch188: bind-9.16-CVE-2023-2828.patch
Patch192: bind-9.16-CVE-2023-3341.patch
%{?systemd_ordering}
Requires: coreutils
@ -442,6 +443,7 @@ in HTML and PDF format.
%patch186 -p1 -b .CVE-2022-3736
%patch187 -p1 -b .CVE-2022-3924
%patch188 -p1 -b .CVE-2023-2828
%patch192 -p1 -b .CVE-2023-3341
%if %{with PKCS11}
%patch135 -p1 -b .config-pkcs11
@ -1165,6 +1167,9 @@ fi;
%endif
%changelog
* Wed Sep 20 2023 Petr Menšík <pemensik@redhat.com> - 32:9.16.23-11.2
- Limit the amount of recursion possible in control channel (CVE-2023-3341)
* Tue Jun 20 2023 Petr Menšík <pemensik@redhat.com> - 32:9.16.23-11.1
- Strengten cache cleaning to prevent overflowing configured limit
(CVE-2023-2828)

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