libtiff: fix CVE-2023-26966 Buffer Overflow

Upstream-Status: Backport from b0e1c25dd1

(From OE-Core rev: 0619953c9d87ec2dd670dc50f15170e5c42f95c7)

Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

meta/recipes-multimedia/libtiff/tiff/CVE-2023-26966.patch

@@ -0,0 +1,35 @@
+From b0e1c25dd1d065200c8d8f59ad0afe014861a1b9 Mon Sep 17 00:00:00 2001
+From: Su_Laus <sulau@freenet.de>
+Date: Thu, 16 Feb 2023 12:03:16 +0100
+Subject: [PATCH] tif_luv: Check and correct for NaN data in uv_encode().
+
+Closes #530
+
+Upstream-Status: Backport [https://gitlab.com/libtiff/libtiff/-/commit/b0e1c25dd1d065200c8d8f59ad0afe014861a1b9]
+CVE: CVE-2023-26966
+Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
+---
+ libtiff/tif_luv.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+diff --git a/libtiff/tif_luv.c b/libtiff/tif_luv.c
+index 13765ea..40b2719 100644
+--- a/libtiff/tif_luv.c
++++ b/libtiff/tif_luv.c
+@@ -908,6 +908,13 @@ uv_encode(double u, double v, int em)	/* encode (u',v') coordinates */
+ {
+ 	register int	vi, ui;
+ 
++	/* check for NaN */
++	if (u != u || v != v)
++	{
++		u = U_NEU;
++		v = V_NEU;
++        }
++
+ 	if (v < UV_VSTART)
+ 		return oog_encode(u, v);
+ 	vi = tiff_itrunc((v - UV_VSTART)*(1./UV_SQSIZ), em);
+-- 
+2.25.1
+

meta/recipes-multimedia/libtiff/tiff_4.3.0.bb

@@ -42,6 +42,7 @@ SRC_URI = "http://download.osgeo.org/libtiff/tiff-${PV}.tar.gz \
            file://CVE-2023-3316.patch \
            file://CVE-2023-3618-1.patch \
            file://CVE-2023-3618-2.patch \
+           file://CVE-2023-26966.patch \
            "
 
 SRC_URI[sha256sum] = "0e46e5acb087ce7d1ac53cf4f56a09b221537fc86dfc5daaad1c2e89e1b37ac8"