1 files changed, 12 insertions, 0 deletions
diff --git a/CryptoPkg/Library/BaseCryptLib/Pk/CryptAuthenticode.c b/CryptoPkg/Library/BaseCryptLib/Pk/CryptAuthenticode.c
index a1f8c58e74..a4f62b22b5 100644
--- a/CryptoPkg/Library/BaseCryptLib/Pk/CryptAuthenticode.c
+++ b/CryptoPkg/Library/BaseCryptLib/Pk/CryptAuthenticode.c
@@ -1,6 +1,14 @@
 /** @file
   Authenticode Portable Executable Signature Verification over OpenSSL.
 
+  Caution: This module requires additional review when modified.
+  This library will have external input - signature (e.g. PE/COFF Authenticode).
+  This external input must be validated carefully to avoid security issue like
+  buffer overflow, integer overflow.
+
+  AuthenticodeVerify() will get PE/COFF Authenticode and will do basic check for
+  data structure.
+
 Copyright (c) 2011 - 2012, Intel Corporation. All rights reserved.<BR>
 This program and the accompanying materials
 are licensed and made available under the terms and conditions of the BSD License
@@ -26,6 +34,10 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
   If AuthData is NULL, then return FALSE.
   If ImageHash is NULL, then return FALSE.
 
+  Caution: This function may receive untrusted input.
+  PE/COFF Authenticode is external input, so this function will do basic check for
+  Authenticode data structure.
+
   @param[in]  AuthData     Pointer to the Authenticode Signature retrieved from signed
                            PE/COFF image to be verified.
   @param[in]  DataSize     Size of the Authenticode Signature in bytes.