diff -Nru tiff-4.4.0/debian/changelog tiff-4.4.0/debian/changelog
--- tiff-4.4.0/debian/changelog	2022-11-02 09:43:19.000000000 +0100
+++ tiff-4.4.0/debian/changelog	2022-11-30 16:24:00.000000000 +0100
@@ -1,3 +1,10 @@
+tiff (4.4.0-4ubuntu3.2) kinetic-security; urgency=critical
+
+  * Backport security fix for CVE-2022-3970, fix (unsigned) integer overflow
+    on strips/tiles > 2 GB in TIFFReadRGBATileExt() (closes: #1024737).
+
+ -- Rico Tzschichholz <ricotz@ubuntu.com>  Wed, 30 Nov 2022 16:24:00 +0100
+
 tiff (4.4.0-4ubuntu3.1) kinetic-security; urgency=medium
 
   * SECURITY UPDATE: heap-overflow and double free in tiffcrop
diff -Nru tiff-4.4.0/debian/patches/CVE-2022-3970.patch tiff-4.4.0/debian/patches/CVE-2022-3970.patch
--- tiff-4.4.0/debian/patches/CVE-2022-3970.patch	1970-01-01 01:00:00.000000000 +0100
+++ tiff-4.4.0/debian/patches/CVE-2022-3970.patch	2022-11-24 17:54:18.000000000 +0100
@@ -0,0 +1,38 @@
+From 227500897dfb07fb7d27f7aa570050e62617e3be Mon Sep 17 00:00:00 2001
+From: Even Rouault <even.rouault@spatialys.com>
+Date: Tue, 8 Nov 2022 15:16:58 +0100
+Subject: [PATCH] TIFFReadRGBATileExt(): fix (unsigned) integer overflow on
+ strips/tiles > 2 GB
+
+Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=53137
+---
+ libtiff/tif_getimage.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/libtiff/tif_getimage.c b/libtiff/tif_getimage.c
+index a4d0c1d6..60b94d8e 100644
+--- a/libtiff/tif_getimage.c
++++ b/libtiff/tif_getimage.c
+@@ -3058,15 +3058,15 @@ TIFFReadRGBATileExt(TIFF* tif, uint32_t col, uint32_t row, uint32_t * raster, in
+         return( ok );
+ 
+     for( i_row = 0; i_row < read_ysize; i_row++ ) {
+-        memmove( raster + (tile_ysize - i_row - 1) * tile_xsize,
+-                 raster + (read_ysize - i_row - 1) * read_xsize,
++        memmove( raster + (size_t)(tile_ysize - i_row - 1) * tile_xsize,
++                 raster + (size_t)(read_ysize - i_row - 1) * read_xsize,
+                  read_xsize * sizeof(uint32_t) );
+-        _TIFFmemset( raster + (tile_ysize - i_row - 1) * tile_xsize+read_xsize,
++        _TIFFmemset( raster + (size_t)(tile_ysize - i_row - 1) * tile_xsize+read_xsize,
+                      0, sizeof(uint32_t) * (tile_xsize - read_xsize) );
+     }
+ 
+     for( i_row = read_ysize; i_row < tile_ysize; i_row++ ) {
+-        _TIFFmemset( raster + (tile_ysize - i_row - 1) * tile_xsize,
++        _TIFFmemset( raster + (size_t)(tile_ysize - i_row - 1) * tile_xsize,
+                      0, sizeof(uint32_t) * tile_xsize );
+     }
+ 
+-- 
+GitLab
+
diff -Nru tiff-4.4.0/debian/patches/series tiff-4.4.0/debian/patches/series
--- tiff-4.4.0/debian/patches/series	2022-11-01 14:49:55.000000000 +0100
+++ tiff-4.4.0/debian/patches/series	2022-11-30 16:24:00.000000000 +0100
@@ -5,3 +5,4 @@
 CVE-2022-3570_3598.patch
 CVE-2022-3599.patch
 CVE-2022-3626_3627.patch
+CVE-2022-3970.patch