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Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This commit is contained in:
Dave Rodgman 2021-06-28 21:49:15 +01:00
parent e8dbd53966
commit 43fcb8d7c1
5 changed files with 25 additions and 17 deletions
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5
ChangeLog.d/fix_fragment_len_return.txt Normal file
View file

@ -0,0 +1,5 @@
Bugfix
* Fix the error returned when a client requests an invalid
* fragment length, as per RFC6066 section 4. We now return
* MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER, and raise the corresponding
* alert.

3
ChangeLog.d/update_ssl_error_codes.txt Normal file
View file

@ -0,0 +1,3 @@
Changes
* Various changes to which alert and/or error code may be returned
* during the TLS handshake.

12
library/ssl_cli.c
View file

@ -1389,8 +1389,8 @@ static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl,
mbedtls_ssl_send_alert_message(
ssl,
MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
}
}
else
@ -1403,8 +1403,8 @@ static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl,
mbedtls_ssl_send_alert_message(
ssl,
MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
}
ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION;
@ -1453,7 +1453,7 @@ static int ssl_parse_cid_ext( mbedtls_ssl_context *ssl,
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "CID extension unexpected" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT );
return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
}
@ -1508,7 +1508,7 @@ static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
mbedtls_ssl_send_alert_message(
ssl,
MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT );
return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
}

8
library/ssl_srv.c
View file

@ -201,8 +201,8 @@ static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl,
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching renegotiation info" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
}
}
else
@ -212,8 +212,8 @@ static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl,
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-zero length renegotiation info" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_DECODE_ERROR );
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
}
ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION;

14
library/ssl_tls.c
View file

@ -1898,7 +1898,7 @@ static int ssl_parse_certificate_chain( mbedtls_ssl_context *ssl,
mbedtls_ssl_send_alert_message( ssl,
MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_DECODE_ERROR );
}
/* In theory, the CRT can be up to 2**24 Bytes, but we don't support
* anything beyond 2**16 ~ 64K. */
@ -1907,8 +1907,8 @@ static int ssl_parse_certificate_chain( mbedtls_ssl_context *ssl,
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
mbedtls_ssl_send_alert_message( ssl,
MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT );
return( MBEDTLS_ERR_SSL_BAD_CERTIFICATE );
}
/* Read length of the next CRT in the chain. */
@ -1943,8 +1943,8 @@ static int ssl_parse_certificate_chain( mbedtls_ssl_context *ssl,
MBEDTLS_SSL_DEBUG_MSG( 1, ( "new server cert during renegotiation" ) );
mbedtls_ssl_send_alert_message( ssl,
MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED );
return( MBEDTLS_ERR_SSL_BAD_CERTIFICATE );
}
/* Now we can safely free the original chain. */
@ -2929,8 +2929,8 @@ int mbedtls_ssl_parse_finished( mbedtls_ssl_context *ssl )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR );
return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
}
#if defined(MBEDTLS_SSL_RENEGOTIATION)