Fix overly strict bounds check in ssl_parse_certificate_request()

This commit is contained in:
Hanno Becker 2018-08-16 15:51:34 +01:00
parent 942cfea65f
commit 9e2237ac47

View File

@ -2504,7 +2504,7 @@ static int ssl_parse_certificate_request( mbedtls_ssl_context *ssl )
* therefore the buffer length at this point must be greater than that
* regardless of the actual code path.
*/
if( ssl->in_hslen <= mbedtls_ssl_hs_hdr_len( ssl ) + 3 + n )
if( ssl->in_hslen <= mbedtls_ssl_hs_hdr_len( ssl ) + 2 + n )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST );