From e34eacc46752a29df71a554ee8d847a3bdc13a4d Mon Sep 17 00:00:00 2001
From: Kevin Backhouse <kevinbackhouse@github.com>
Date: Mon, 13 Dec 2021 12:22:54 +0000
Subject: [PATCH] Use memmove, rather than memcpy, because memory regions might
 overlap.

---
 src/tiffvisitor_int.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tiffvisitor_int.cpp b/src/tiffvisitor_int.cpp
index 04b16f6e..1540cda3 100644
--- a/src/tiffvisitor_int.cpp
+++ b/src/tiffvisitor_int.cpp
@@ -745,7 +745,7 @@ namespace Exiv2 {
 #endif
             memset(buf + 8, 0x0, 4);
             if (pTiffEntry->size() > 0) {
-                memcpy(buf + 8, pTiffEntry->pData(), pTiffEntry->size());
+                memmove(buf + 8, pTiffEntry->pData(), pTiffEntry->size());
                 memset(const_cast<byte*>(pTiffEntry->pData()), 0x0, pTiffEntry->size());
             }
         }