From 36d904218bbec471dff85e7d337fae63be68940d Mon Sep 17 00:00:00 2001 From: Ron Eldor Date: Mon, 9 Jan 2017 15:09:16 +0200 Subject: [PATCH] Resource leak fix on windows platform Fix a resource leak on windows platform, in mbedtls_x509_crt_parse_path, in case a failure. when an error occurs, goto cleanup, and free the resource, instead of returning error code immediately. --- ChangeLog | 3 +++ library/x509_crt.c | 6 +++++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/ChangeLog b/ChangeLog index 7a72030fa..c81c259e3 100644 --- a/ChangeLog +++ b/ChangeLog @@ -8,6 +8,9 @@ Bugfix * Replace preproccessor condition from #if defined(MBEDTLS_THREADING_PTHREAD) to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will always be implemented by pthread support. Fix for #696 + * Fix resource leak on windows platform, in mbedtls_x509_crt_parse_path. + In case of failure, when an error occures, goto cleanup. + Found by redplait #590 Security * Fix authentication bypass in SSL/TLS: when auth_mode is set to optional, diff --git a/library/x509_crt.c b/library/x509_crt.c index d7b857e58..5ec855192 100644 --- a/library/x509_crt.c +++ b/library/x509_crt.c @@ -1146,7 +1146,10 @@ int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path ) p, (int) len - 1, NULL, NULL ); if( w_ret == 0 ) - return( MBEDTLS_ERR_X509_FILE_IO_ERROR ); + { + ret = MBEDTLS_ERR_X509_FILE_IO_ERROR; + goto cleanup; + } w_ret = mbedtls_x509_crt_parse_file( chain, filename ); if( w_ret < 0 ) @@ -1159,6 +1162,7 @@ int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path ) if( GetLastError() != ERROR_NO_MORE_FILES ) ret = MBEDTLS_ERR_X509_FILE_IO_ERROR; +cleanup: FindClose( hFind ); #else /* _WIN32 */ int t_ret;