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Merge in the latest changes from 0.9.6d-stable.

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This commit is contained in:
Richard Levitte
2002-04-17 07:02:47 +00:00
parent 7525ac5aba
commit c1fb6557e5
16 changed files with 349 additions and 79 deletions
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24
CHANGES
View File

@@ -4,6 +4,30 @@
Changes between 0.9.6c and 0.9.6d [XX xxx XXXX]
*) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
an end-of-file condition would erronously be flagged, when the CRLF
was just at the end of a processed block. The bug was discovered when
processing data through a buffering memory BIO handing the data to a
BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
<ptsekov@syntrex.com> and Nedelcho Stanev.
[Lutz Jaenicke]
*) Implement a countermeasure against a vulnerability recently found
in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
before application data chunks to avoid the use of known IVs
with data potentially chosen by the attacker.
[Bodo Moeller]
*) Fix length checks in ssl3_get_client_hello().
[Bodo Moeller]
*) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
to prevent ssl3_read_internal() from incorrectly assuming that
ssl3_read_bytes() found application data while handshake
processing was enabled when in fact s->s3->in_read_app_data was
merely automatically cleared during the initial handshake.
[Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
*) Fix object definitions for Private and Enterprise: they were not
recognized in their shortname (=lowercase) representation. Extend
obj_dat.pl to issue an error when using undefined keywords instead

5
NEWS
View File

@@ -5,6 +5,11 @@
This file gives a brief overview of the major changes between each OpenSSL
release. For more details please read the CHANGES file.
Changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d:
o Various SSL/TLS library bugfixes.
o Fix DH parameter generation for 'non-standard' generators.
Changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c:
o Various SSL/TLS library bugfixes.

4
apps/smime.c
View File

@@ -481,9 +481,9 @@ int MAIN(int argc, char **argv)
} else if(operation == SMIME_VERIFY) {
STACK_OF(X509) *signers;
if(PKCS7_verify(p7, other, store, indata, out, flags)) {
BIO_printf(bio_err, "Verification Successful\n");
BIO_printf(bio_err, "Verification successful\n");
} else {
BIO_printf(bio_err, "Verification Failure\n");
BIO_printf(bio_err, "Verification failure\n");
goto end;
}
signers = PKCS7_get0_signers(p7, other, flags);

7
crypto/evp/encode.c
View File

@@ -277,6 +277,13 @@ int EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl,
eof++;
}
if (v == B64_CR)
{
ln = 0;
if (exp_nl)
continue;
}
/* eoln */
if (v == B64_EOLN)
{

2
crypto/objects/obj_dat.c
View File

@@ -645,6 +645,8 @@ int OBJ_create(char *oid, char *sn, char *ln)
return(0);
}
i=a2d_ASN1_OBJECT(buf,i,oid,-1);
if (i == 0)
goto err;
op=(ASN1_OBJECT *)ASN1_OBJECT_create(OBJ_new_nid(1),buf,i,sn,ln);
if (op == NULL)
goto err;

2
doc/crypto/BN_bn2bin.pod
View File

@@ -49,7 +49,7 @@ with a leading '-' for negative numbers, to the B<BIO> or B<FILE>
B<fp>.
BN_bn2mpi() and BN_mpi2bn() convert B<BIGNUM>s from and to a format
that consists of the number's length in bytes represented as a 3-byte
that consists of the number's length in bytes represented as a 4-byte
big-endian number, and the number itself in big-endian format, where
the most significant bit signals a negative number (the representation
of numbers with the MSB set is prefixed with null byte).

2
doc/crypto/RSA_generate_key.pod
View File

@@ -19,7 +19,7 @@ be seeded prior to calling RSA_generate_key().
The modulus size will be B<num> bits, and the public exponent will be
B<e>. Key sizes with B<num> E<lt> 1024 should be considered insecure.
The exponent is an odd number, typically 3 or 65535.
The exponent is an odd number, typically 3, 17 or 65537.
A callback function may be used to provide feedback about the
progress of the key generation. If B<callback> is not B<NULL>, it

27
shlib/Makefile.hpux10-cc
View File

@@ -1,12 +1,12 @@
# Makefile.hpux-cc
major=1
major=0.9.6d
slib=libssl
sh_slib=$(slib).so.$(major)
sh_slib=$(slib).sl.$(major)
clib=libcrypto
sh_clib=$(clib).so.$(major)
sh_clib=$(clib).sl.$(major)
all : $(clib).sl $(slib).sl
@@ -20,31 +20,14 @@ $(slib)_pic.a : $(slib).a
cp -p $? $@
$(sh_clib) : $(clib)_pic.a
echo "collecting all object files for $@"
find . -name \*.o -print > allobjs
for obj in `ar t $(clib)_pic.a`; \
do \
grep /$$obj allobjs; \
done >objlist
echo "linking $@"
ld -b -s -z +h $@ -o $@ `cat objlist` -lc
rm allobjs objlist
ld -b -s -z +h $@ -o $@ -Fl $(clib)_pic.a -ldld -lc
$(clib).sl : $(sh_clib)
rm -f $@
ln -s $? $@
$(sh_slib) : $(slib)_pic.a $(clib).sl
echo "collecting all object files for $@"
find . -name \*.o -print > allobjs
for obj in `ar t $(slib)_pic.a`; \
do \
grep /$$obj allobjs; \
done >objlist
echo "linking $@"
ld -b -s -z +h $@ +b /usr/local/ssl/lib:/usr/lib -o $@ `cat objlist` \
-L. -lcrypto -lc
rm -f allobjs objlist
ld -b -s -z +h $@ -o $@ -Fl $(slib)_pic.a -ldld -lc
$(slib).sl : $(sh_slib)
rm -f $@

18
shlib/hpux10-cc.sh
View File

@@ -20,7 +20,9 @@
# WARNING: At high optimization levels, HP's ANSI-C compiler can chew up
# large amounts of memory and CPU time. Make sure to have at least
# 128MB of RAM available and that your kernel is configured to allow
# at least 128MB data size (maxdsiz parameter).
# at least 128MB data size (maxdsiz parameter which can be obtained
# by multiplying 'echo maxdsiz/D | adb -k /stand/vmunix /dev/kmem'
# by 'getconf PAGE_SIZE').
# The installation process can take several hours, even on fast
# machines. +O4 optimization of the libcrypto.sl shared library may
# take 1 hour on a C200 (200MHz PA8200 CPU), +O3 compilation of
@@ -40,7 +42,7 @@ SITEFLAGS="+DAportable +w1"
MYFLAGS="-D_REENTRANT +Oall $SITEFLAGS"
# Configure for pic and build the static pic libraries
perl5 Configure hpux-parisc-cc-o4 +z ${MYFLAGS}
perl5 Configure no-shared hpux-parisc-cc-o4 +Z ${MYFLAGS}
make clean
make DIRS="crypto ssl"
# Rename the static pic libs and build dynamic libraries from them
@@ -58,21 +60,21 @@ mkdir /usr/local
mkdir /usr/local/ssl
mkdir /usr/local/ssl/lib
chmod 444 lib*_pic.a
chmod 555 lib*.so.1
cp -p lib*_pic.a lib*.so.1 /usr/local/ssl/lib
(cd /usr/local/ssl/lib ; ln -sf libcrypto.so.1 libcrypto.sl ; ln -sf libssl.so.1 libssl.sl)
chmod 555 lib*.sl.0.9.6d
cp -p lib*_pic.a lib*.sl.0.9.6d /usr/local/ssl/lib
(cd /usr/local/ssl/lib ; ln -sf libcrypto.sl.0.9.6d libcrypto.sl ; ln -sf libssl.sl.0.9.6d libssl.sl)
# Reconfigure without pic to compile the executables. Unfortunately, while
# performing this task we have to recompile the library components, even
# though we use the already installed shared libs anyway.
#
perl5 Configure hpux-parisc-cc-o4 ${MYFLAGS}
perl5 Configure no-shared hpux-parisc-cc-o4 ${MYFLAGS}
make clean
# Hack the Makefiles to pick up the dynamic libraries during linking
#
sed 's/^PEX_LIBS=.*$/PEX_LIBS=-L\/usr\/local\/ssl\/lib -Wl,+b,\/usr\/local\/ssl\/lib:\/usr\/lib/' Makefile.ssl >xxx; mv xxx Makefile.ssl
sed 's/^PEX_LIBS=.*$/PEX_LIBS=-L\/usr\/local\/ssl\/lib/' Makefile.ssl >xxx; mv xxx Makefile.ssl
sed 's/-L\.\.//' apps/Makefile.ssl >xxx; mv xxx apps/Makefile.ssl
sed 's/-L\.\.//' test/Makefile.ssl >xxx; mv xxx test/Makefile.ssl
# Build the static libs and the executables in one make.
@@ -83,7 +85,7 @@ make install
# Finally build the static libs with +O3. This time we only need the libraries,
# once created, they are simply copied into place.
#
perl5 Configure hpux-parisc-cc ${MYFLAGS}
perl5 Configure no-shared hpux-parisc-cc ${MYFLAGS}
make clean
make DIRS="crypto ssl"
chmod 644 libcrypto.a libssl.a

14
ssl/s3_both.c
View File

@@ -56,7 +56,7 @@
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
* Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -572,6 +572,7 @@ int ssl3_setup_buffers(SSL *s)
{
unsigned char *p;
unsigned int extra;
size_t len;
if (s->s3->rbuf.buf == NULL)
{
@@ -579,18 +580,21 @@ int ssl3_setup_buffers(SSL *s)
extra=SSL3_RT_MAX_EXTRA;
else
extra=0;
if ((p=OPENSSL_malloc(SSL3_RT_MAX_PACKET_SIZE+extra))
== NULL)
len = SSL3_RT_MAX_PACKET_SIZE + extra;
if ((p=OPENSSL_malloc(len)) == NULL)
goto err;
s->s3->rbuf.buf = p;
s->s3->rbuf_len = len;
}
if (s->s3->wbuf.buf == NULL)
{
if ((p=OPENSSL_malloc(SSL3_RT_MAX_PACKET_SIZE))
== NULL)
len = SSL3_RT_MAX_PACKET_SIZE;
len += SSL3_RT_HEADER_LENGTH + 256; /* extra space for empty fragment */
if ((p=OPENSSL_malloc(len)) == NULL)
goto err;
s->s3->wbuf.buf = p;
s->s3->wbuf_len = len;
}
s->packet= &(s->s3->rbuf.buf[0]);
return(1);

61
ssl/s3_enc.c
View File

@@ -55,6 +55,59 @@
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include <openssl/md5.h>
@@ -308,6 +361,14 @@ int ssl3_setup_key_block(SSL *s)
ssl3_generate_key_block(s,p,num);
/* enable vulnerability countermeasure for CBC ciphers with
* known-IV problem (http://www.openssl.org/~bodo/tls-cbc.txt) */
s->s3->need_empty_fragments = 1;
#ifndef NO_RC4
if ((s->session->cipher != NULL) && ((s->session->cipher->algorithms & SSL_ENC_MASK) == SSL_RC4))
s->s3->need_empty_fragments = 0;
#endif
return(1);
err:
SSLerr(SSL_F_SSL3_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE);

14
ssl/s3_lib.c
View File

@@ -740,6 +740,7 @@ void ssl3_free(SSL *s)
void ssl3_clear(SSL *s)
{
unsigned char *rp,*wp;
size_t rlen, wlen;
ssl3_cleanup_key_block(s);
if (s->s3->tmp.ca_names != NULL)
@@ -757,10 +758,14 @@ void ssl3_clear(SSL *s)
rp = s->s3->rbuf.buf;
wp = s->s3->wbuf.buf;
rlen = s->s3->rbuf_len;
wlen = s->s3->wbuf_len;
memset(s->s3,0,sizeof *s->s3);
if (rp != NULL) s->s3->rbuf.buf=rp;
if (wp != NULL) s->s3->wbuf.buf=wp;
s->s3->rbuf.buf = rp;
s->s3->wbuf.buf = wp;
s->s3->rbuf_len = rlen;
s->s3->wbuf_len = wlen;
ssl_free_wbio_buffer(s);
@@ -1315,13 +1320,12 @@ static int ssl3_read_internal(SSL *s, void *buf, int len, int peek)
if (s->s3->renegotiate) ssl3_renegotiate_check(s);
s->s3->in_read_app_data=1;
ret=ssl3_read_bytes(s,SSL3_RT_APPLICATION_DATA,buf,len,peek);
if ((ret == -1) && (s->s3->in_read_app_data == 0))
if ((ret == -1) && (s->s3->in_read_app_data == 2))
{
/* ssl3_read_bytes decided to call s->handshake_func, which
* called ssl3_read_bytes to read handshake data.
* However, ssl3_read_bytes actually found application data
* and thinks that application data makes sense here (signalled
* by resetting 'in_read_app_data', strangely); so disable
* and thinks that application data makes sense here; so disable
* handshake processing and try to read application data again. */
s->in_handshake++;
ret=ssl3_read_bytes(s,SSL3_RT_APPLICATION_DATA,buf,len,peek);

91
ssl/s3_pkt.c
View File

@@ -56,7 +56,7 @@
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
* Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -117,7 +117,7 @@
#include "ssl_locl.h"
static int do_ssl3_write(SSL *s, int type, const unsigned char *buf,
unsigned int len);
unsigned int len, int create_empty_fragment);
static int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
unsigned int len);
static int ssl3_get_record(SSL *s);
@@ -162,9 +162,7 @@ static int ssl3_read_n(SSL *s, int n, int max, int extend)
{
/* avoid buffer overflow */
int max_max = SSL3_RT_MAX_PACKET_SIZE - s->packet_length;
if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER)
max_max += SSL3_RT_MAX_EXTRA;
int max_max = s->s3->rbuf_len - s->packet_length;
if (max > max_max)
max = max_max;
}
@@ -247,14 +245,20 @@ static int ssl3_get_record(SSL *s)
extra=SSL3_RT_MAX_EXTRA;
else
extra=0;
if (extra != (s->s3->rbuf_len - SSL3_RT_MAX_PACKET_SIZE))
{
/* actually likely an application error: SLS_OP_MICROSOFT_BIG_SSLV3_BUFFER
* set after ssl3_setup_buffers() was done */
SSLerr(SSL_F_SSL3_GET_RECORD, SSL_R_INTERNAL_ERROR);
return -1;
}
again:
/* check if we have the header */
if ( (s->rstate != SSL_ST_READ_BODY) ||
(s->packet_length < SSL3_RT_HEADER_LENGTH))
{
n=ssl3_read_n(s,SSL3_RT_HEADER_LENGTH,
SSL3_RT_MAX_PACKET_SIZE,0);
n=ssl3_read_n(s, SSL3_RT_HEADER_LENGTH, s->s3->rbuf_len, 0);
if (n <= 0) return(n); /* error or non-blocking */
s->rstate=SSL_ST_READ_BODY;
@@ -509,7 +513,7 @@ int ssl3_write_bytes(SSL *s, int type, const void *buf_, int len)
if (i == 0)
{
SSLerr(SSL_F_SSL3_WRITE_BYTES,SSL_R_SSL_HANDSHAKE_FAILURE);
return(-1);
return -1;
}
}
@@ -521,18 +525,22 @@ int ssl3_write_bytes(SSL *s, int type, const void *buf_, int len)
else
nw=n;
i=do_ssl3_write(s,type,&(buf[tot]),nw);
i=do_ssl3_write(s, type, &(buf[tot]), nw, 0);
if (i <= 0)
{
s->s3->wnum=tot;
return(i);
return i;
}
if ((i == (int)n) ||
(type == SSL3_RT_APPLICATION_DATA &&
(s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE)))
{
return(tot+i);
/* next chunk of data should get another prepended empty fragment
* in ciphersuites with known-IV weakness: */
s->s3->empty_fragment_done = 0;
return tot+i;
}
n-=i;
@@ -541,15 +549,16 @@ int ssl3_write_bytes(SSL *s, int type, const void *buf_, int len)
}
static int do_ssl3_write(SSL *s, int type, const unsigned char *buf,
unsigned int len)
unsigned int len, int create_empty_fragment)
{
unsigned char *p,*plen;
int i,mac_size,clear=0;
int prefix_len = 0;
SSL3_RECORD *wr;
SSL3_BUFFER *wb;
SSL_SESSION *sess;
/* first check is there is a SSL3_RECORD still being written
/* first check if there is a SSL3_BUFFER still being written
* out. This will happen with non blocking IO */
if (s->s3->wbuf.left != 0)
return(ssl3_write_pending(s,type,buf,len));
@@ -563,7 +572,8 @@ static int do_ssl3_write(SSL *s, int type, const unsigned char *buf,
/* if it went, fall through and send more stuff */
}
if (len == 0) return(len);
if (len == 0 && !create_empty_fragment)
return 0;
wr= &(s->s3->wrec);
wb= &(s->s3->wbuf);
@@ -579,16 +589,44 @@ static int do_ssl3_write(SSL *s, int type, const unsigned char *buf,
else
mac_size=EVP_MD_size(s->write_hash);
p=wb->buf;
/* 'create_empty_fragment' is true only when this function calls itself */
if (!clear && !create_empty_fragment && !s->s3->empty_fragment_done)
{
/* countermeasure against known-IV weakness in CBC ciphersuites
* (see http://www.openssl.org/~bodo/tls-cbc.txt) */
if (s->s3->need_empty_fragments && type == SSL3_RT_APPLICATION_DATA)
{
/* recursive function call with 'create_empty_fragment' set;
* this prepares and buffers the data for an empty fragment
* (these 'prefix_len' bytes are sent out later
* together with the actual payload) */
prefix_len = do_ssl3_write(s, type, buf, 0, 1);
if (prefix_len <= 0)
goto err;
if (s->s3->wbuf_len < prefix_len + SSL3_RT_MAX_PACKET_SIZE)
{
/* insufficient space */
SSLerr(SSL_F_DO_SSL3_WRITE, SSL_R_INTERNAL_ERROR);
goto err;
}
}
s->s3->empty_fragment_done = 1;
}
p = wb->buf + prefix_len;
/* write the header */
*(p++)=type&0xff;
wr->type=type;
*(p++)=(s->version>>8);
*(p++)=s->version&0xff;
/* record where we are to write out packet length */
/* field where we are to write out packet length */
plen=p;
p+=2;
@@ -639,19 +677,28 @@ static int do_ssl3_write(SSL *s, int type, const unsigned char *buf,
wr->type=type; /* not needed but helps for debugging */
wr->length+=SSL3_RT_HEADER_LENGTH;
/* Now lets setup wb */
wb->left=wr->length;
if (create_empty_fragment)
{
/* we are in a recursive call;
* just return the length, don't write out anything here
*/
return wr->length;
}
/* now let's set up wb */
wb->left = prefix_len + wr->length;
wb->offset = 0;
/* memorize arguments so that ssl3_write_pending can detect bad write retries later */
s->s3->wpend_tot=len;
s->s3->wpend_buf=buf;
s->s3->wpend_type=type;
s->s3->wpend_ret=len;
/* we now just need to write the buffer */
return(ssl3_write_pending(s,type,buf,len));
return ssl3_write_pending(s,type,buf,len);
err:
return(-1);
return -1;
}
/* if s->s3->wbuf.left != 0, we need to call this */
@@ -1114,7 +1161,7 @@ start:
)
))
{
s->s3->in_read_app_data=0;
s->s3->in_read_app_data=2;
return(-1);
}
else
@@ -1200,7 +1247,7 @@ int ssl3_dispatch_alert(SSL *s)
void (*cb)()=NULL;
s->s3->alert_dispatch=0;
i=do_ssl3_write(s,SSL3_RT_ALERT,&s->s3->send_alert[0],2);
i = do_ssl3_write(s, SSL3_RT_ALERT, &s->s3->send_alert[0], 2, 0);
if (i <= 0)
{
s->s3->alert_dispatch=1;

11
ssl/s3_srvr.c
View File

@@ -711,7 +711,7 @@ static int ssl3_get_client_hello(SSL *s)
SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_CIPHERS_SPECIFIED);
goto f_err;
}
if ((i+p) > (d+n))
if ((p+i) >= (d+n))
{
/* not enough data */
al=SSL_AD_DECODE_ERROR;
@@ -768,6 +768,13 @@ static int ssl3_get_client_hello(SSL *s)
/* compression */
i= *(p++);
if ((p+i) > (d+n))
{
/* not enough data */
al=SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_LENGTH_MISMATCH);
goto f_err;
}
q=p;
for (j=0; j<i; j++)
{
@@ -815,7 +822,7 @@ static int ssl3_get_client_hello(SSL *s)
/* TLS does not mind if there is extra stuff */
if (s->version == SSL3_VERSION)
{
if (p > (d+n))
if (p < (d+n))
{
/* wrong number of bytes,
* there could be more to follow */

67
ssl/ssl3.h
View File

@@ -55,6 +55,59 @@
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#ifndef HEADER_SSL3_H
#define HEADER_SSL3_H
@@ -201,8 +254,11 @@ typedef struct ssl3_record_st
typedef struct ssl3_buffer_st
{
unsigned char *buf; /* SSL3_RT_MAX_PACKET_SIZE bytes (more if
* SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER is set) */
unsigned char *buf; /* at least SSL3_RT_MAX_PACKET_SIZE bytes,
* see ssl3_setup_buffers() */
#if 0 /* put directly into SSL3_STATE for best possible binary compatibility within 0.9.6 series */
size_t len; /* buffer size */
#endif
int offset; /* where to 'copy from' */
int left; /* how many bytes left */
} SSL3_BUFFER;
@@ -321,6 +377,13 @@ typedef struct ssl3_state_st
int cert_request;
} tmp;
/* flags for countermeasure against known-IV weakness */
int need_empty_fragments;
int empty_fragment_done;
size_t rbuf_len; /* substitute for rbuf.len */
size_t wbuf_len; /* substitute for wbuf.len */
} SSL3_STATE;
/* SSLv3 */

61
ssl/t1_enc.c
View File

@@ -55,6 +55,59 @@
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/* ====================================================================
* Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include <openssl/comp.h>
@@ -380,6 +433,14 @@ printf("\nkey block\n");
{ int z; for (z=0; z<num; z++) printf("%02X%c",p1[z],((z+1)%16)?' ':'\n'); }
#endif
/* enable vulnerability countermeasure for CBC ciphers with
* known-IV problem (http://www.openssl.org/~bodo/tls-cbc.txt) */
s->s3->need_empty_fragments = 1;
#ifndef NO_RC4
if ((s->session->cipher != NULL) && ((s->session->cipher->algorithms & SSL_ENC_MASK) == SSL_RC4))
s->s3->need_empty_fragments = 0;
#endif
return(1);
err:
SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE);