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7 changed files with 16 additions and 1783 deletions

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@ -1,11 +1,13 @@
diff -up openssl-1.1.1k/ssl/statem/extensions.c.cleanup-reneg openssl-1.1.1k/ssl/statem/extensions.c diff -up openssl-1.1.1k/ssl/statem/extensions.c.cleanup-reneg openssl-1.1.1k/ssl/statem/extensions.c
--- openssl-1.1.1k/ssl/statem/extensions.c.cleanup-reneg 2021-03-25 14:28:38.000000000 +0100 --- openssl-1.1.1k/ssl/statem/extensions.c.cleanup-reneg 2021-03-25 14:28:38.000000000 +0100
+++ openssl-1.1.1k/ssl/statem/extensions.c 2021-06-24 16:16:19.526181743 +0200 +++ openssl-1.1.1k/ssl/statem/extensions.c 2021-06-24 16:16:19.526181743 +0200
@@ -42,6 +42,7 @@ static int tls_parse_certificate_authori @@ -42,6 +42,9 @@ static int tls_parse_certificate_authori
#ifndef OPENSSL_NO_SRP #ifndef OPENSSL_NO_SRP
static int init_srp(SSL *s, unsigned int context); static int init_srp(SSL *s, unsigned int context);
#endif #endif
+#ifndef OPENSSL_NO_EC
+static int init_ec_point_formats(SSL *s, unsigned int context); +static int init_ec_point_formats(SSL *s, unsigned int context);
+#endif
static int init_etm(SSL *s, unsigned int context); static int init_etm(SSL *s, unsigned int context);
static int init_ems(SSL *s, unsigned int context); static int init_ems(SSL *s, unsigned int context);
static int final_ems(SSL *s, unsigned int context, int sent); static int final_ems(SSL *s, unsigned int context, int sent);
@ -18,10 +20,11 @@ diff -up openssl-1.1.1k/ssl/statem/extensions.c.cleanup-reneg openssl-1.1.1k/ssl
tls_construct_stoc_ec_pt_formats, tls_construct_ctos_ec_pt_formats, tls_construct_stoc_ec_pt_formats, tls_construct_ctos_ec_pt_formats,
final_ec_pt_formats final_ec_pt_formats
}, },
@@ -1164,6 +1165,15 @@ static int init_srp(SSL *s, unsigned int @@ -1164,6 +1165,17 @@ static int init_srp(SSL *s, unsigned int
} }
#endif #endif
+#ifndef OPENSSL_NO_EC
+static int init_ec_point_formats(SSL *s, unsigned int context) +static int init_ec_point_formats(SSL *s, unsigned int context)
+{ +{
+ OPENSSL_free(s->ext.peer_ecpointformats); + OPENSSL_free(s->ext.peer_ecpointformats);
@ -30,6 +33,7 @@ diff -up openssl-1.1.1k/ssl/statem/extensions.c.cleanup-reneg openssl-1.1.1k/ssl
+ +
+ return 1; + return 1;
+} +}
+#endif
+ +
static int init_etm(SSL *s, unsigned int context) static int init_etm(SSL *s, unsigned int context)
{ {

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@ -1,127 +0,0 @@
From 8780a896543a654e757db1b9396383f9d8095528 Mon Sep 17 00:00:00 2001
From: Matt Caswell <matt@openssl.org>
Date: Thu, 6 Jul 2023 16:36:35 +0100
Subject: [PATCH] Fix DH_check() excessive time with over sized modulus
The DH_check() function checks numerous aspects of the key or parameters
that have been supplied. Some of those checks use the supplied modulus
value even if it is excessively large.
There is already a maximum DH modulus size (10,000 bits) over which
OpenSSL will not generate or derive keys. DH_check() will however still
perform various tests for validity on such a large modulus. We introduce a
new maximum (32,768) over which DH_check() will just fail.
An application that calls DH_check() and supplies a key or parameters
obtained from an untrusted source could be vulnerable to a Denial of
Service attack.
The function DH_check() is itself called by a number of other OpenSSL
functions. An application calling any of those other functions may
similarly be affected. The other functions affected by this are
DH_check_ex() and EVP_PKEY_param_check().
CVE-2023-3446
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21452)
Upstream-Status: Backport [8780a896543a654e757db1b9396383f9d8095528]
---
crypto/dh/dh_check.c | 6 ++++++
crypto/dh/dh_err.c | 3 ++-
crypto/err/openssl.txt | 3 ++-
include/openssl/dh.h | 3 +++
include/openssl/dherr.h | 3 ++-
5 files changed, 15 insertions(+), 3 deletions(-)
diff --git a/crypto/dh/dh_check.c b/crypto/dh/dh_check.c
index 4ac169e75c..e5f9dd5030 100644
--- a/crypto/dh/dh_check.c
+++ b/crypto/dh/dh_check.c
@@ -101,6 +101,12 @@ int DH_check(const DH *dh, int *ret)
BN_CTX *ctx = NULL;
BIGNUM *t1 = NULL, *t2 = NULL;
+ /* Don't do any checks at all with an excessively large modulus */
+ if (BN_num_bits(dh->p) > OPENSSL_DH_CHECK_MAX_MODULUS_BITS) {
+ DHerr(DH_F_DH_CHECK, DH_R_MODULUS_TOO_LARGE);
+ return 0;
+ }
+
if (!DH_check_params(dh, ret))
return 0;
diff --git a/crypto/dh/dh_err.c b/crypto/dh/dh_err.c
index 7285587b4a..92800d3fcc 100644
--- a/crypto/dh/dh_err.c
+++ b/crypto/dh/dh_err.c
@@ -1,6 +1,6 @@
/*
* Generated by util/mkerr.pl DO NOT EDIT
- * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
@@ -18,6 +18,7 @@ static const ERR_STRING_DATA DH_str_functs[] = {
{ERR_PACK(ERR_LIB_DH, DH_F_DHPARAMS_PRINT_FP, 0), "DHparams_print_fp"},
{ERR_PACK(ERR_LIB_DH, DH_F_DH_BUILTIN_GENPARAMS, 0),
"dh_builtin_genparams"},
+ {ERR_PACK(ERR_LIB_DH, DH_F_DH_CHECK, 0), "DH_check"},
{ERR_PACK(ERR_LIB_DH, DH_F_DH_CHECK_EX, 0), "DH_check_ex"},
{ERR_PACK(ERR_LIB_DH, DH_F_DH_CHECK_PARAMS_EX, 0), "DH_check_params_ex"},
{ERR_PACK(ERR_LIB_DH, DH_F_DH_CHECK_PUB_KEY_EX, 0), "DH_check_pub_key_ex"},
diff --git a/crypto/err/openssl.txt b/crypto/err/openssl.txt
index 9f91a4a811..c0a3cd720b 100644
--- a/crypto/err/openssl.txt
+++ b/crypto/err/openssl.txt
@@ -402,6 +402,7 @@ CT_F_SCT_SET_VERSION:104:SCT_set_version
DH_F_COMPUTE_KEY:102:compute_key
DH_F_DHPARAMS_PRINT_FP:101:DHparams_print_fp
DH_F_DH_BUILTIN_GENPARAMS:106:dh_builtin_genparams
+DH_F_DH_CHECK:126:DH_check
DH_F_DH_CHECK_EX:121:DH_check_ex
DH_F_DH_CHECK_PARAMS_EX:122:DH_check_params_ex
DH_F_DH_CHECK_PUB_KEY_EX:123:DH_check_pub_key_ex
diff --git a/include/openssl/dh.h b/include/openssl/dh.h
index 3527540cdd..892e31559d 100644
--- a/include/openssl/dh.h
+++ b/include/openssl/dh.h
@@ -29,6 +29,9 @@ extern "C" {
# ifndef OPENSSL_DH_MAX_MODULUS_BITS
# define OPENSSL_DH_MAX_MODULUS_BITS 10000
# endif
+# ifndef OPENSSL_DH_CHECK_MAX_MODULUS_BITS
+# define OPENSSL_DH_CHECK_MAX_MODULUS_BITS 32768
+# endif
# define OPENSSL_DH_FIPS_MIN_MODULUS_BITS 1024
# define OPENSSL_DH_FIPS_MIN_MODULUS_BITS_GEN 2048
diff --git a/include/openssl/dherr.h b/include/openssl/dherr.h
index 916b3bed0b..528c819856 100644
--- a/include/openssl/dherr.h
+++ b/include/openssl/dherr.h
@@ -1,6 +1,6 @@
/*
* Generated by util/mkerr.pl DO NOT EDIT
- * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
@@ -30,6 +30,7 @@ int ERR_load_DH_strings(void);
# define DH_F_COMPUTE_KEY 102
# define DH_F_DHPARAMS_PRINT_FP 101
# define DH_F_DH_BUILTIN_GENPARAMS 106
+# define DH_F_DH_CHECK 126
# define DH_F_DH_CHECK_EX 121
# define DH_F_DH_CHECK_PARAMS_EX 122
# define DH_F_DH_CHECK_PUB_KEY_EX 123
--
2.41.0

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@ -1,60 +0,0 @@
From 91ddeba0f2269b017dc06c46c993a788974b1aa5 Mon Sep 17 00:00:00 2001
From: Tomas Mraz <tomas@openssl.org>
Date: Fri, 21 Jul 2023 11:39:41 +0200
Subject: [PATCH] DH_check(): Do not try checking q properties if it is
obviously invalid
If |q| >= |p| then the q value is obviously wrong as q
is supposed to be a prime divisor of p-1.
We check if p is overly large so this added test implies that
q is not large either when performing subsequent tests using that
q value.
Otherwise if it is too large these additional checks of the q value
such as the primality test can then trigger DoS by doing overly long
computations.
Fixes CVE-2023-3817
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21551)
Upstream-Status: Backport [91ddeba0f2269b017dc06c46c993a788974b1aa5]
---
crypto/dh/dh_check.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/crypto/dh/dh_check.c b/crypto/dh/dh_check.c
index 2001d2e7cb..9ae96991eb 100644
--- a/crypto/dh/dh_check.c
+++ b/crypto/dh/dh_check.c
@@ -105,7 +105,7 @@ int DH_check_ex(const DH *dh)
/* Note: according to documentation - this only checks the params */
int DH_check(const DH *dh, int *ret)
{
- int ok = 0, r;
+ int ok = 0, r, q_good = 0;
BN_CTX *ctx = NULL;
BIGNUM *t1 = NULL, *t2 = NULL;
@@ -130,7 +130,14 @@ int DH_check(const DH *dh, int *ret)
if (t2 == NULL)
goto err;
- if (dh->q) {
+ if (dh->q != NULL) {
+ if (BN_ucmp(dh->p, dh->q) > 0)
+ q_good = 1;
+ else
+ *ret |= DH_CHECK_INVALID_Q_VALUE;
+ }
+
+ if (q_good) {
if (BN_cmp(dh->g, BN_value_one()) <= 0)
*ret |= DH_NOT_SUITABLE_GENERATOR;
else if (BN_cmp(dh->g, dh->p) >= 0)
--
2.41.0

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@ -1,154 +0,0 @@
From 0814467cc1b6a2839877277d3efa69cdd4582dd7 Mon Sep 17 00:00:00 2001
From: Richard Levitte <levitte@openssl.org>
Date: Fri, 20 Oct 2023 09:18:19 +0200
Subject: [PATCH] Make DH_check_pub_key() and DH_generate_key() safer yet
We already check for an excessively large P in DH_generate_key(), but not in
DH_check_pub_key(), and none of them check for an excessively large Q.
This change adds all the missing excessive size checks of P and Q.
It's to be noted that behaviours surrounding excessively sized P and Q
differ. DH_check() raises an error on the excessively sized P, but only
sets a flag for the excessively sized Q. This behaviour is mimicked in
DH_check_pub_key().
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22518)
(cherry picked from commit ddeb4b6c6d527e54ce9a99cba785c0f7776e54b6)
Backported-by: Clemens Lang <cllang@redhat.com>
---
crypto/dh/dh_check.c | 17 +++++++++++++++++
crypto/dh/dh_err.c | 1 +
crypto/dh/dh_key.c | 10 ++++++++++
crypto/err/openssl.txt | 1 +
include/openssl/dh.h | 6 ++++--
include/openssl/dherr.h | 1 +
6 files changed, 34 insertions(+), 2 deletions(-)
diff --git a/crypto/dh/dh_check.c b/crypto/dh/dh_check.c
index ae1b03bc92..424a3bb4cd 100644
--- a/crypto/dh/dh_check.c
+++ b/crypto/dh/dh_check.c
@@ -198,10 +198,27 @@ int DH_check_pub_key(const DH *dh, const BIGNUM *pub_key, int *ret)
BN_CTX *ctx = NULL;
*ret = 0;
+
ctx = BN_CTX_new();
if (ctx == NULL)
goto err;
BN_CTX_start(ctx);
+
+ /* Don't do any checks at all with an excessively large modulus */
+ if (BN_num_bits(dh->p) > OPENSSL_DH_CHECK_MAX_MODULUS_BITS) {
+ DHerr(DH_F_DH_CHECK, DH_R_MODULUS_TOO_LARGE);
+ *ret = DH_MODULUS_TOO_LARGE | DH_CHECK_PUBKEY_INVALID;
+ goto err;
+ }
+ if (dh->q != NULL && BN_ucmp(dh->p, dh->q) < 0) {
+ *ret |= DH_CHECK_INVALID_Q_VALUE | DH_CHECK_PUBKEY_INVALID;
+ /* This may look strange here, but returning 1 after setting ret is
+ * correct. See also the behavior of the pub_key^q == 1 mod p check
+ * further down, which behaves in the same way. */
+ ok = 1;
+ goto err;
+ }
+
tmp = BN_CTX_get(ctx);
if (tmp == NULL || !BN_set_word(tmp, 1))
goto err;
diff --git a/crypto/dh/dh_err.c b/crypto/dh/dh_err.c
index 92800d3fcc..b3b1e7a706 100644
--- a/crypto/dh/dh_err.c
+++ b/crypto/dh/dh_err.c
@@ -87,6 +87,7 @@ static const ERR_STRING_DATA DH_str_reasons[] = {
{ERR_PACK(ERR_LIB_DH, 0, DH_R_PARAMETER_ENCODING_ERROR),
"parameter encoding error"},
{ERR_PACK(ERR_LIB_DH, 0, DH_R_PEER_KEY_ERROR), "peer key error"},
+ {ERR_PACK(ERR_LIB_DH, 0, DH_R_Q_TOO_LARGE), "q too large"},
{ERR_PACK(ERR_LIB_DH, 0, DH_R_SHARED_INFO_ERROR), "shared info error"},
{ERR_PACK(ERR_LIB_DH, 0, DH_R_UNABLE_TO_CHECK_GENERATOR),
"unable to check generator"},
diff --git a/crypto/dh/dh_key.c b/crypto/dh/dh_key.c
index 117f2fa883..9f5e6f6d4c 100644
--- a/crypto/dh/dh_key.c
+++ b/crypto/dh/dh_key.c
@@ -140,6 +140,11 @@ static int generate_key(DH *dh)
return 0;
}
+ if (dh->q != NULL && BN_num_bits(dh->q) > OPENSSL_DH_MAX_MODULUS_BITS) {
+ DHerr(DH_F_GENERATE_KEY, DH_R_Q_TOO_LARGE);
+ return 0;
+ }
+
ctx = BN_CTX_new();
if (ctx == NULL)
goto err;
@@ -250,6 +255,12 @@ static int compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh)
DHerr(DH_F_COMPUTE_KEY, DH_R_MODULUS_TOO_LARGE);
goto err;
}
+
+ if (dh->q != NULL && BN_num_bits(dh->q) > OPENSSL_DH_MAX_MODULUS_BITS) {
+ DHerr(DH_F_COMPUTE_KEY, DH_R_Q_TOO_LARGE);
+ goto err;
+ }
+
#ifdef OPENSSL_FIPS
if (FIPS_mode()
&& (BN_num_bits(dh->p) < OPENSSL_DH_FIPS_MIN_MODULUS_BITS)) {
diff --git a/crypto/err/openssl.txt b/crypto/err/openssl.txt
index c0a3cd720b..5e0ff47516 100644
--- a/crypto/err/openssl.txt
+++ b/crypto/err/openssl.txt
@@ -2151,6 +2151,7 @@DH_R_NO_PARAMETERS_SET:107:no parameters set
DH_R_NO_PRIVATE_VALUE:100:no private value
DH_R_PARAMETER_ENCODING_ERROR:105:parameter encoding error
DH_R_PEER_KEY_ERROR:111:peer key error
+DH_R_Q_TOO_LARGE:130:q too large
DH_R_SHARED_INFO_ERROR:113:shared info error
DH_R_UNABLE_TO_CHECK_GENERATOR:121:unable to check generator
DSA_R_BAD_Q_VALUE:102:bad q value
diff --git a/include/openssl/dh.h b/include/openssl/dh.h
index 6c6ff3636a..b7df43b44f 100644
--- a/include/openssl/dh.h
+++ b/include/openssl/dh.h
@@ -72,14 +72,16 @@ DECLARE_ASN1_ITEM(DHparams)
/* #define DH_GENERATOR_3 3 */
# define DH_GENERATOR_5 5
-/* DH_check error codes */
+/* DH_check error codes, some of them shared with DH_check_pub_key */
# define DH_CHECK_P_NOT_PRIME 0x01
# define DH_CHECK_P_NOT_SAFE_PRIME 0x02
# define DH_UNABLE_TO_CHECK_GENERATOR 0x04
# define DH_NOT_SUITABLE_GENERATOR 0x08
# define DH_CHECK_Q_NOT_PRIME 0x10
-# define DH_CHECK_INVALID_Q_VALUE 0x20
+# define DH_CHECK_INVALID_Q_VALUE 0x20 /* +DH_check_pub_key */
# define DH_CHECK_INVALID_J_VALUE 0x40
+/* DH_MODULUS_TOO_SMALL is 0x80 upstream */
+# define DH_MODULUS_TOO_LARGE 0x100 /* +DH_check_pub_key */
/* DH_check_pub_key error codes */
# define DH_CHECK_PUBKEY_TOO_SMALL 0x01
diff --git a/include/openssl/dherr.h b/include/openssl/dherr.h
index 528c819856..d66c35aa8e 100644
--- a/include/openssl/dherr.h
+++ b/include/openssl/dherr.h
@@ -87,6 +87,7 @@ int ERR_load_DH_strings(void);
# define DH_R_NON_FIPS_METHOD 202
# define DH_R_PARAMETER_ENCODING_ERROR 105
# define DH_R_PEER_KEY_ERROR 111
+# define DH_R_Q_TOO_LARGE 130
# define DH_R_SHARED_INFO_ERROR 113
# define DH_R_UNABLE_TO_CHECK_GENERATOR 121
--
2.41.0

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@ -1,255 +0,0 @@
From d1d4b56fe0c9a4200276d630f62108e1165e0990 Mon Sep 17 00:00:00 2001
From: Maurizio Barbaro <mbarbaro@redhat.com>
Date: Mon, 16 Sep 2024 10:53:53 +0200
Subject: [PATCH] Backport openssl: SSL_select_next_proto buffer overread from 3.2
Ensure that the provided client list is non-NULL and starts with a valid
entry. When called from the ALPN callback the client list should already
have been validated by OpenSSL so this should not cause a problem. When
called from the NPN callback the client list is locally configured and
will not have already been validated. Therefore SSL_select_next_proto
should not assume that it is correctly formatted.
We implement stricter checking of the client protocol list. We also do the
same for the server list while we are about it.
CVE-2024-5535
From: Matt Caswell <matt@openssl.org>
Date: Fri, 31 May 2024 11:14:33 +0100
Merged from: https://github.com/openssl/openssl/pull/24717.
Backported-by: Maurizio Barbaro <mbarbaro@redhat.com>
we did't ported test changes because rely on internal testing framework.
---
doc/man3/SSL_CTX_set_alpn_select_cb.pod | 28 +++++++----
ssl/ssl_lib.c | 64 +++++++++++++++----------
ssl/statem/extensions_clnt.c | 30 +++++++++++-
ssl/statem/extensions_srvr.c | 3 +-
4 files changed, 89 insertions(+), 36 deletions(-)
diff --git a/doc/man3/SSL_CTX_set_alpn_select_cb.pod b/doc/man3/SSL_CTX_set_alpn_select_cb.pod
index e90caec..a3f8dfd 100644
--- a/doc/man3/SSL_CTX_set_alpn_select_cb.pod
+++ b/doc/man3/SSL_CTX_set_alpn_select_cb.pod
@@ -43,7 +43,7 @@ SSL_select_next_proto, SSL_get0_alpn_selected, SSL_get0_next_proto_negotiated
const unsigned char *server,
unsigned int server_len,
const unsigned char *client,
- unsigned int client_len)
+ unsigned int client_len);
void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
unsigned *len);
@@ -52,7 +52,8 @@ SSL_select_next_proto, SSL_get0_alpn_selected, SSL_get0_next_proto_negotiated
SSL_CTX_set_alpn_protos() and SSL_set_alpn_protos() are used by the client to
set the list of protocols available to be negotiated. The B<protos> must be in
protocol-list format, described below. The length of B<protos> is specified in
-B<protos_len>.
+B<protos_len>. Setting B<protos_len> to 0 clears any existing list of ALPN
+protocols and no ALPN extension will be sent to the server.
SSL_CTX_set_alpn_select_cb() sets the application callback B<cb> used by a
server to select which protocol to use for the incoming connection. When B<cb>
@@ -73,9 +74,16 @@ B<server_len> and B<client>, B<client_len> must be in the protocol-list format
described below. The first item in the B<server>, B<server_len> list that
matches an item in the B<client>, B<client_len> list is selected, and returned
in B<out>, B<outlen>. The B<out> value will point into either B<server> or
-B<client>, so it should be copied immediately. If no match is found, the first
-item in B<client>, B<client_len> is returned in B<out>, B<outlen>. This
-function can also be used in the NPN callback.
+B<client>, so it should be copied immediately. The client list must include at
+least one valid (nonempty) protocol entry in the list.
+
+The SSL_select_next_proto() helper function can be useful from either the ALPN
+callback or the NPN callback (described below). If no match is found, the first
+item in B<client>, B<client_len> is returned in B<out>, B<outlen> and
+B<OPENSSL_NPN_NO_OVERLAP> is returned. This can be useful when implementating
+the NPN callback. In the ALPN case, the value returned in B<out> and B<outlen>
+must be ignored if B<OPENSSL_NPN_NO_OVERLAP> has been returned from
+SSL_select_next_proto().
SSL_CTX_set_next_proto_select_cb() sets a callback B<cb> that is called when a
client needs to select a protocol from the server's provided list, and a
@@ -85,9 +93,10 @@ must be set to point to the selected protocol (which may be within B<in>).
The length of the protocol name must be written into B<outlen>. The
server's advertised protocols are provided in B<in> and B<inlen>. The
callback can assume that B<in> is syntactically valid. The client must
-select a protocol. It is fatal to the connection if this callback returns
-a value other than B<SSL_TLSEXT_ERR_OK>. The B<arg> parameter is the pointer
-set via SSL_CTX_set_next_proto_select_cb().
+select a protocol (although it may be an empty, zero length protocol). It is
+fatal to the connection if this callback returns a value other than
+B<SSL_TLSEXT_ERR_OK> or if the zero length protocol is selected. The B<arg>
+parameter is the pointer set via SSL_CTX_set_next_proto_select_cb().
SSL_CTX_set_next_protos_advertised_cb() sets a callback B<cb> that is called
when a TLS server needs a list of supported protocols for Next Protocol
@@ -149,7 +158,8 @@ A match was found and is returned in B<out>, B<outlen>.
=item OPENSSL_NPN_NO_OVERLAP
No match was found. The first item in B<client>, B<client_len> is returned in
-B<out>, B<outlen>.
+B<out>, B<outlen> (or B<NULL> and 0 in the case where the first entry in
+B<client> is invalid).
=back
diff --git a/ssl/ssl_lib.c b/ssl/ssl_lib.c
index c71c686..21e6c45 100644
--- a/ssl/ssl_lib.c
+++ b/ssl/ssl_lib.c
@@ -2739,38 +2739,54 @@ int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
unsigned int server_len,
const unsigned char *client, unsigned int client_len)
{
- unsigned int i, j;
- const unsigned char *result;
- int status = OPENSSL_NPN_UNSUPPORTED;
+ PACKET cpkt, csubpkt, spkt, ssubpkt;
+ if (!PACKET_buf_init(&cpkt, client, client_len)
+ || !PACKET_get_length_prefixed_1(&cpkt, &csubpkt)
+ || PACKET_remaining(&csubpkt) == 0) {
+ *out = NULL;
+ *outlen = 0;
+ return OPENSSL_NPN_NO_OVERLAP;
+ }
+
+ /*
+ * Set the default opportunistic protocol. Will be overwritten if we find
+ * a match.
+ */
+ *out = (unsigned char *)PACKET_data(&csubpkt);
+ *outlen = (unsigned char)PACKET_remaining(&csubpkt);
/*
* For each protocol in server preference order, see if we support it.
*/
- for (i = 0; i < server_len;) {
- for (j = 0; j < client_len;) {
- if (server[i] == client[j] &&
- memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
- /* We found a match */
- result = &server[i];
- status = OPENSSL_NPN_NEGOTIATED;
- goto found;
+ if (PACKET_buf_init(&spkt, server, server_len)) {
+ while (PACKET_get_length_prefixed_1(&spkt, &ssubpkt)) {
+ if (PACKET_remaining(&ssubpkt) == 0)
+ continue; /* Invalid - ignore it */
+ if (PACKET_buf_init(&cpkt, client, client_len)) {
+ while (PACKET_get_length_prefixed_1(&cpkt, &csubpkt)) {
+ if (PACKET_equal(&csubpkt, PACKET_data(&ssubpkt),
+ PACKET_remaining(&ssubpkt))) {
+ /* We found a match */
+ *out = (unsigned char *)PACKET_data(&ssubpkt);
+ *outlen = (unsigned char)PACKET_remaining(&ssubpkt);
+ return OPENSSL_NPN_NEGOTIATED;
+ }
+ }
+ /* Ignore spurious trailing bytes in the client list */
+ } else {
+ /* This should never happen */
+ return OPENSSL_NPN_NO_OVERLAP;
}
- j += client[j];
- j++;
}
- i += server[i];
- i++;
+ /* Ignore spurious trailing bytes in the server list */
}
- /* There's no overlap between our protocols and the server's list. */
- result = client;
- status = OPENSSL_NPN_NO_OVERLAP;
-
- found:
- *out = (unsigned char *)result + 1;
- *outlen = result[0];
- return status;
-}
+ /*
+ * There's no overlap between our protocols and the server's list. We use
+ * the default opportunistic protocol selected earlier
+ */
+ return OPENSSL_NPN_NO_OVERLAP;
+ }
#ifndef OPENSSL_NO_NEXTPROTONEG
/*
diff --git a/ssl/statem/extensions_clnt.c b/ssl/statem/extensions_clnt.c
index ce8a757..cfde733 100644
--- a/ssl/statem/extensions_clnt.c
+++ b/ssl/statem/extensions_clnt.c
@@ -1585,8 +1585,8 @@ int tls_parse_stoc_npn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
if (s->ctx->ext.npn_select_cb(s, &selected, &selected_len,
PACKET_data(pkt),
PACKET_remaining(pkt),
- s->ctx->ext.npn_select_cb_arg) !=
- SSL_TLSEXT_ERR_OK) {
+ s->ctx->ext.npn_select_cb_arg) != SSL_TLSEXT_ERR_OK
+ || selected_len == 0) {
SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_TLS_PARSE_STOC_NPN,
SSL_R_BAD_EXTENSION);
return 0;
@@ -1617,6 +1617,8 @@ int tls_parse_stoc_alpn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
size_t chainidx)
{
size_t len;
+ PACKET confpkt, protpkt;
+ int valid = 0;
/* We must have requested it. */
if (!s->s3->alpn_sent) {
@@ -1637,6 +1639,30 @@ int tls_parse_stoc_alpn(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
SSL_R_BAD_EXTENSION);
return 0;
}
+
+ /* It must be a protocol that we sent */
+ if (!PACKET_buf_init(&confpkt, s->ext.alpn, s->ext.alpn_len)) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PARSE_STOC_ALPN,
+ ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
+ while (PACKET_get_length_prefixed_1(&confpkt, &protpkt)) {
+ if (PACKET_remaining(&protpkt) != len)
+ continue;
+ if (memcmp(PACKET_data(pkt), PACKET_data(&protpkt), len) == 0) {
+ /* Valid protocol found */
+ valid = 1;
+ break;
+ }
+ }
+
+ if (!valid) {
+ /* The protocol sent from the server does not match one we advertised */
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PARSE_STOC_ALPN,
+ SSL_R_BAD_EXTENSION);
+ return 0;
+ }
+
OPENSSL_free(s->s3->alpn_selected);
s->s3->alpn_selected = OPENSSL_malloc(len);
if (s->s3->alpn_selected == NULL) {
diff --git a/ssl/statem/extensions_srvr.c b/ssl/statem/extensions_srvr.c
index 3c7395c..4e3cbf8 100644
--- a/ssl/statem/extensions_srvr.c
+++ b/ssl/statem/extensions_srvr.c
@@ -1559,9 +1559,10 @@ EXT_RETURN tls_construct_stoc_next_proto_neg(SSL *s, WPACKET *pkt,
return EXT_RETURN_FAIL;
}
s->s3->npn_seen = 1;
+ return EXT_RETURN_SENT;
}
- return EXT_RETURN_SENT;
+ return EXT_RETURN_NOT_SENT;
}
#endif
--
2.46.0

File diff suppressed because it is too large Load Diff

View File

@ -22,7 +22,7 @@
Summary: Utilities from the general purpose cryptography library with TLS implementation Summary: Utilities from the general purpose cryptography library with TLS implementation
Name: openssl Name: openssl
Version: 1.1.1k Version: 1.1.1k
Release: 14%{?dist} Release: 9%{?dist}
Epoch: 1 Epoch: 1
# We have to remove certain patented algorithms from the openssl source # We have to remove certain patented algorithms from the openssl source
# tarball with the hobble-openssl script which is included below. # tarball with the hobble-openssl script which is included below.
@ -92,16 +92,6 @@ Patch101: openssl-1.1.1-cve-2022-4304-RSA-oracle.patch
Patch102: openssl-1.1.1-cve-2022-4450-PEM-bio.patch Patch102: openssl-1.1.1-cve-2022-4450-PEM-bio.patch
Patch103: openssl-1.1.1-cve-2023-0215-BIO-UAF.patch Patch103: openssl-1.1.1-cve-2023-0215-BIO-UAF.patch
Patch104: openssl-1.1.1-cve-2023-0286-X400.patch Patch104: openssl-1.1.1-cve-2023-0286-X400.patch
# OpenSSL 1.1.1v CVEs
Patch105: openssl-1.1.1-cve-2023-3446.patch
Patch106: openssl-1.1.1-cve-2023-3817.patch
Patch107: openssl-1.1.1-cve-2023-5678.patch
# Backport from OpenSSL 3.2/RHEL 9
# Proper fix for CVE-2020-25659
Patch108: openssl-1.1.1-pkcs1-implicit-rejection.patch
# Backport from OpenSSL 3.2
# Fix for CVE-2024-5535
Patch109: openssl-1.1.1-fix-ssl-select-next-proto.patch
License: OpenSSL and ASL 2.0 License: OpenSSL and ASL 2.0
URL: http://www.openssl.org/ URL: http://www.openssl.org/
@ -231,11 +221,6 @@ cp %{SOURCE13} test/
%patch102 -p1 -b .cve-2022-4450 %patch102 -p1 -b .cve-2022-4450
%patch103 -p1 -b .cve-2023-0215 %patch103 -p1 -b .cve-2023-0215
%patch104 -p1 -b .cve-2023-0286 %patch104 -p1 -b .cve-2023-0286
%patch105 -p1 -b .cve-2023-3446
%patch106 -p1 -b .cve-2023-3817
%patch107 -p1 -b .cve-2023-5678
%patch108 -p1 -b .pkcs15imprejection
%patch109 -p1 -b .cve-2024-5535
%build %build
# Figure out which flags we want to use. # Figure out which flags we want to use.
@ -519,52 +504,33 @@ export LD_LIBRARY_PATH
%postun libs -p /sbin/ldconfig %postun libs -p /sbin/ldconfig
%changelog %changelog
* Tue Sep 17 2024 Maurizio Barbaro <mbarbaro@redhat.com> - 1:1.1.1k-14 * Wed Feb 08 2023 Dmitry Belyavskiy <dbelyavs@redhat.com> - 1:1.1.1k-9
- Backport fix SSL_select_next proto from OpenSSL 3.2
Fix CVE-2024-5535
Resolves: RHEL-45654
* Thu Nov 30 2023 Dmitry Belyavskiy <dbelyavs@redhat.com> - 1:1.1.1k-12
- Backport implicit rejection mechanism for RSA PKCS#1 v1.5 to RHEL-8 series
(a proper fix for CVE-2020-25659)
Resolves: RHEL-17694
* Wed Nov 15 2023 Clemens Lang <cllang@redhat.com> - 1:1.1.1k-11
- Fix CVE-2023-5678: Generating excessively long X9.42 DH keys or checking
excessively long X9.42 DH keys or parameters may be very slow
Resolves: RHEL-16536
* Thu Oct 19 2023 Clemens Lang <cllang@redhat.com> - 1:1.1.1k-10
- Fix CVE-2023-3446: Excessive time spent checking DH keys and parameters
Resolves: RHEL-14243
- Fix CVE-2023-3817: Excessive time spent checking DH q parameter value
Resolves: RHEL-14237
* Thu May 04 2023 Dmitry Belyavskiy <dbelyavs@redhat.com> - 1:1.1.1k-9
- Fixed Timing Oracle in RSA Decryption - Fixed Timing Oracle in RSA Decryption
Resolves: CVE-2022-4304 Resolves: CVE-2022-4304
- Fixed Double free after calling PEM_read_bio_ex - Fixed Double free after calling PEM_read_bio_ex
Resolves: CVE-2022-4450 Resolves: CVE-2022-4450
- Fixed Use-after-free following BIO_new_NDEF - Fixed Use-after-free following BIO_new_NDEF
Resolves: CVE-2023-0215 Resolves: CVE-2023-0215
* Wed Feb 08 2023 Dmitry Belyavskiy <dbelyavs@redhat.com> - 1:1.1.1k-8
- Fixed X.400 address type confusion in X.509 GeneralName - Fixed X.400 address type confusion in X.509 GeneralName
Resolves: CVE-2023-0286 Resolves: CVE-2023-0286
* Thu Jul 21 2022 Dmitry Belyavskiy <dbelyavs@redhat.com> - 1:1.1.1k-8
- Fix no-ec build
Resolves: rhbz#2071020
* Tue Jul 05 2022 Clemens Lang <cllang@redhat.com> - 1:1.1.1k-7 * Tue Jul 05 2022 Clemens Lang <cllang@redhat.com> - 1:1.1.1k-7
- Fix CVE-2022-2097: AES OCB fails to encrypt some bytes on 32-bit x86 - Fix CVE-2022-2097: AES OCB fails to encrypt some bytes on 32-bit x86
Resolves: CVE-2022-2097 Resolves: CVE-2022-2097
- Update expired certificates used in the testsuite - Update expired certificates used in the testsuite
Resolves: rhbz#2100554 Resolves: rhbz#2092462
- Fix CVE-2022-1292: openssl: c_rehash script allows command injection - Fix CVE-2022-1292: openssl: c_rehash script allows command injection
Resolves: rhbz#2090371 Resolves: rhbz#2090372
- Fix CVE-2022-2068: the c_rehash script allows command injection - Fix CVE-2022-2068: the c_rehash script allows command injection
Resolves: rhbz#2098278 Resolves: rhbz#2098279
* Wed Mar 23 2022 Clemens Lang <cllang@redhat.com> - 1:1.1.1k-6 * Wed Mar 23 2022 Clemens Lang <cllang@redhat.com> - 1:1.1.1k-6
- Fixes CVE-2022-0778 openssl: Infinite loop in BN_mod_sqrt() reachable when parsing certificates - Fixes CVE-2022-0778 openssl: Infinite loop in BN_mod_sqrt() reachable when parsing certificates
- Resolves: rhbz#2067145 - Resolves: rhbz#2067146
* Tue Nov 16 2021 Sahana Prasad <sahana@redhat.com> - 1:1.1.1k-5 * Tue Nov 16 2021 Sahana Prasad <sahana@redhat.com> - 1:1.1.1k-5
- Fixes CVE-2021-3712 openssl: Read buffer overruns processing ASN.1 strings - Fixes CVE-2021-3712 openssl: Read buffer overruns processing ASN.1 strings