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Add record size checking during handshake

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Signed-off-by: Waleed Elmelegy <waleed.elmelegy@arm.com>
This commit is contained in:
Waleed Elmelegy 2023-12-05 20:08:51 +00:00
parent f482dcc6c7
commit 9aec1c71f2
6 changed files with 79 additions and 58 deletions
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3
library/ssl_tls13_generic.c
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@ -1376,13 +1376,14 @@ static int ssl_tls13_write_change_cipher_spec_body(mbedtls_ssl_context *ssl,
int mbedtls_ssl_tls13_write_change_cipher_spec(mbedtls_ssl_context *ssl)
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
int max_out_record_len = mbedtls_ssl_get_max_out_record_payload(ssl);
MBEDTLS_SSL_DEBUG_MSG(2, ("=> write change cipher spec"));
/* Write CCS message */
MBEDTLS_SSL_PROC_CHK(ssl_tls13_write_change_cipher_spec_body(
ssl, ssl->out_msg,
ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN,
ssl->out_msg + max_out_record_len,
&ssl->out_msglen));
ssl->out_msgtype = MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC;