From: "Qiu, Zheng" <Zheng.Qiu@...>

This patch contains a fix for CVE-2022-3970

Reference:
https://nvd.nist.gov/vuln/detail/CVE-2022-3970
https://security-tracker.debian.org/tracker/CVE-2022-3970

Patch generated from :
https://gitlab.com/libtiff/libtiff/-/commit/227500897dfb07fb7d27f7aa570050e62617e3be

Signed-off-by: Zheng Qiu <zheng.qiu@...>
Signed-off-by: Alexandre Belloni <alexandre.belloni@...>
Signed-off-by: Martin Jansa <Martin.Jansa@...>
---
.../libtiff/tiff/CVE-2022-3970.patch | 38 +++++++++++++++++++
meta/recipes-multimedia/libtiff/tiff_4.3.0.bb | 1 +
2 files changed, 39 insertions(+)
create mode 100644 meta/recipes-multimedia/libtiff/tiff/CVE-2022-3970.patch

diff --git a/meta/recipes-multimedia/libtiff/tiff/CVE-2022-3970.patch b/meta/recipes-multimedia/libtiff/tiff/CVE-2022-3970.patch
new file mode 100644
index 0000000000..3779ebf646
--- /dev/null
+++ b/meta/recipes-multimedia/libtiff/tiff/CVE-2022-3970.patch
@@ -0,0 +1,38 @@
+From 11c8026913e190b02266c1247e7a770e488d925e Mon Sep 17 00:00:00 2001
+From: Even Rouault <even.rouault@...>
+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
+Upstream-Status: Accepted
+
+Signed-off-by: Martin Jansa <Martin.Jansa@...>
+---
+ 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 a1b6570b..9a2e0c59 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 );
+ }
+
diff --git a/meta/recipes-multimedia/libtiff/tiff_4.3.0.bb b/meta/recipes-multimedia/libtiff/tiff_4.3.0.bb
index af9bdcfbde..b3737f962e 100644
--- a/meta/recipes-multimedia/libtiff/tiff_4.3.0.bb
+++ b/meta/recipes-multimedia/libtiff/tiff_4.3.0.bb
@@ -27,6 +27,7 @@ SRC_URI = "http://download.osgeo.org/libtiff/tiff-${PV}.tar.gz \
file://b258ed69a485a9cfb299d9f060eb2a46c54e5903.patch \
file://0001-tiffcrop-Fix-issue-330-and-some-more-from-320-to-349.patch \
file://CVE-2022-2953.patch \
+ file://CVE-2022-3970.patch \
file://0001-Revised-handling-of-TIFFTAG_INKNAMES-and-related-TIF.patch \
file://0001-tiffcrop-S-option-Make-decision-simpler.patch \
file://0001-tiffcrop-disable-incompatibility-of-Z-X-Y-z-options-.patch \
--
2.38.1