[fix][libexif] Force text fields to be null-terminated.

1 files changed, 3 insertions, 0 deletions

diff --git a/lib/libexif/ExifParse.cpp b/lib/libexif/ExifParse.cpp
index 7e4482e933..1d4934b84b 100755
--- a/lib/libexif/ExifParse.cpp
+++ b/lib/libexif/ExifParse.cpp
@@ -420,6 +420,7 @@ void CExifParse::ProcessDir(const unsigned char* const DirStart,
         int length = max(ByteCount, 0);
         length = min(length, MAX_COMMENT);
         strncpy(m_ExifInfo->Description, (char *)ValuePtr, length);
+        m_ExifInfo->Description[length] = '\0';
         break;
       }
       case TAG_MAKE:              strncpy(m_ExifInfo->CameraMake, (char *)ValuePtr, 32);    break;
@@ -476,6 +477,7 @@ void CExifParse::ProcessDir(const unsigned char* const DirStart,
           int length = ByteCount - EXIF_COMMENT_CHARSET_LENGTH;
           length = min(length, MAX_COMMENT);
           memcpy(m_ExifInfo->Comments, ValuePtr + EXIF_COMMENT_CHARSET_LENGTH, length);
+          m_ExifInfo->Comments[length] = '\0';
 //          FixComment(comment);                          // Ensure comment is printable
         }
       }
@@ -487,6 +489,7 @@ void CExifParse::ProcessDir(const unsigned char* const DirStart,
         m_ExifInfo->CommentsCharset = EXIF_COMMENT_CHARSET_UNICODE;
         size_t length = min(ByteCount, MAX_COMMENT);
         memcpy(m_ExifInfo->Comments, ValuePtr, length);
+        m_ExifInfo->Comments[length] = '\0';
       }
       break;