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Add run-time check for record content size in ssl_encrypt_buf

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Hanno Becker 2017-09-18 10:55:31 +01:00
parent 6499bedfa8
commit aede183630
1 changed files with 7 additions and 0 deletions
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7
library/ssl_tls.c
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@ -1259,6 +1259,13 @@ static int ssl_encrypt_buf( mbedtls_ssl_context *ssl )
MBEDTLS_SSL_DEBUG_BUF( 4, "before encrypt: output payload", MBEDTLS_SSL_DEBUG_BUF( 4, "before encrypt: output payload",
ssl->out_msg, ssl->out_msglen ); ssl->out_msg, ssl->out_msglen );
if( ssl->out_msglen > MBEDTLS_SSL_MAX_CONTENT_LEN )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Record content too large, maximum %d",
MBEDTLS_SSL_MAX_CONTENT_LEN ) );
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
/* /*
* Add MAC before if needed * Add MAC before if needed
*/ */