Add tests for overreads in pem_read_buffer()
diff --git a/ChangeLog b/ChangeLog
index cae68a6..e0c74e6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,7 +4,7 @@
Bugfix
* Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
- the input string in pem format to extract the different components. Found
+ the input string in PEM format to extract the different components. Found
by Eyal Itkin.
= mbed TLS 2.4.0 branch released 2016-10-17
diff --git a/tests/suites/test_suite_pem.data b/tests/suites/test_suite_pem.data
index 973c923..9a62db8 100644
--- a/tests/suites/test_suite_pem.data
+++ b/tests/suites/test_suite_pem.data
@@ -15,3 +15,12 @@
PEM write (exactly two lines + 1)
mbedtls_pem_write_buffer:"-----START TEST-----\n":"-----END TEST-----\n":"000102030405060708090A0B0C0D0E0F000102030405060708090A0B0C0D0E0F000102030405060708090A0B0C0D0E0F000102030405060708090A0B0C0D0E0F000102030405060708090A0B0C0D0E0F000102030405060708090A0B0C0D0E0F00":"-----START TEST-----\nAAECAwQFBgcICQoLDA0ODwABAgMEBQYHCAkKCwwNDg8AAQIDBAUGBwgJCgsMDQ4P\nAAECAwQFBgcICQoLDA0ODwABAgMEBQYHCAkKCwwNDg8AAQIDBAUGBwgJCgsMDQ4P\nAA==\n-----END TEST-----\n"
+
+PEM read (DES-EDE3-CBC + invalid iv)
+mbedtls_pem_read_buffer:"^":"$":"^\nProc-Type\: 4,ENCRYPTED\nDEK-Info\: DES-EDE3-CBC,00$":-4608
+
+PEM read (DES-CBC + invalid iv)
+mbedtls_pem_read_buffer:"^":"$":"^\nProc-Type\: 4,ENCRYPTED\nDEK-Info\: DES-CBC,00$":-4608
+
+PEM read (unknown encryption algorithm)
+mbedtls_pem_read_buffer:"^":"$":"^\nProc-Type\: 4,ENCRYPTED\nDEK-Info\: AES-,00$":-4736
diff --git a/tests/suites/test_suite_pem.function b/tests/suites/test_suite_pem.function
index 6a62bfe..5e02210 100644
--- a/tests/suites/test_suite_pem.function
+++ b/tests/suites/test_suite_pem.function
@@ -3,12 +3,7 @@
#include "mbedtls/pem.h"
/* END_HEADER */
-/* BEGIN_DEPENDENCIES
- * depends_on:MBEDTLS_PEM_WRITE_C
- * END_DEPENDENCIES
- */
-
-/* BEGIN_CASE */
+/* BEGIN_CASE depends_on:MBEDTLS_PEM_WRITE_C */
void mbedtls_pem_write_buffer( char *start, char *end, char *buf_str, char *result_str )
{
unsigned char buf[5000];
@@ -38,3 +33,20 @@
mbedtls_free( check_buf );
}
/* END_CASE */
+
+/* BEGIN_CASE depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_AES_C:MBEDTLS_DES_C:MBEDTLS_MD5_C:MBEDTLS_CIPHER_MODE_CBC */
+void mbedtls_pem_read_buffer( char *header, char *footer, char *data, int ret )
+{
+ mbedtls_pem_context ctx;
+ size_t use_len = 0;
+
+ mbedtls_pem_init( &ctx );
+
+ TEST_ASSERT( mbedtls_pem_read_buffer( &ctx, header, footer,
+ (const unsigned char *)data, NULL, 0,
+ &use_len ) == ret );
+
+exit:
+ mbedtls_pem_free( &ctx );
+}
+/* END_CASE */
