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Fix possible signedness issue in time comparison

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Manuel Pégourié-Gonnard 2015-05-20 11:41:36 +02:00
parent 0849a0a910
commit 8eff512274
1 changed files with 9 additions and 4 deletions
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13
library/ssl_ticket.c
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@ -387,11 +387,16 @@ int mbedtls_ssl_ticket_parse( void *p_ticket,
goto cleanup;
#if defined(MBEDTLS_HAVE_TIME)
/* Check if still valid */
if( ( time( NULL) - session->start ) > ctx->ticket_lifetime )
{
ret = MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED;
goto cleanup;
/* Check for expiration */
time_t current_time = time( NULL );
if( current_time < session->start ||
(uint32_t)( current_time - session->start ) > ctx->ticket_lifetime )
{
ret = MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED;
goto cleanup;
}
}
#endif