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Fix issue #2718 (condition always false)

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This commit is contained in:
irwir 2019-09-21 18:51:25 +03:00
parent c835672c51
commit 6527bd6dfc
3 changed files with 10 additions and 4 deletions
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4
library/ssl_srv.c
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@ -3810,7 +3810,7 @@ static int ssl_parse_client_psk_identity( mbedtls_ssl_context *ssl, unsigned cha
const unsigned char *end )
{
int ret = 0;
size_t n;
uint16_t n;
if( ssl_conf_has_psk_or_cb( ssl->conf ) == 0 )
{
@ -3830,7 +3830,7 @@ static int ssl_parse_client_psk_identity( mbedtls_ssl_context *ssl, unsigned cha
n = ( (*p)[0] << 8 ) | (*p)[1];
*p += 2;
if( n < 1 || n > 65535 || n > (size_t) ( end - *p ) )
if( n == 0 || n > end - *p )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );