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Set len var to 0 when buf is freed in ssl_tls.c

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This commit is contained in:
Andres Amaya Garcia 2017-07-05 14:25:21 +01:00
parent af0b31d76f
commit bbafd34ebb
1 changed files with 9 additions and 2 deletions
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11
library/ssl_tls.c
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@ -6049,13 +6049,19 @@ int mbedtls_ssl_conf_psk( mbedtls_ssl_config *conf,
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
if( conf->psk != NULL || conf->psk_identity != NULL )
if( conf->psk != NULL )
{
mbedtls_zeroize( conf->psk, conf->psk_len );
mbedtls_free( conf->psk );
mbedtls_free( conf->psk_identity );
conf->psk = NULL;
conf->psk_len = 0;
}
if( conf->psk_identity != NULL )
{
mbedtls_free( conf->psk_identity );
conf->psk_identity = NULL;
conf->psk_identity_len = 0;
}
if( ( conf->psk = mbedtls_calloc( 1, psk_len ) ) == NULL ||
@ -6090,6 +6096,7 @@ int mbedtls_ssl_set_hs_psk( mbedtls_ssl_context *ssl,
{
mbedtls_zeroize( ssl->handshake->psk, ssl->handshake->psk_len );
mbedtls_free( ssl->handshake->psk );
ssl->handshake->psk_len = 0;
}
if( ( ssl->handshake->psk = mbedtls_calloc( 1, psk_len ) ) == NULL )