From 5b80bfd7bffd4c20d80b7c70a7130529e9a755dd Mon Sep 17 00:00:00 2001
From: ToshikazuOhiwa <toshikazu_ohiwa@mail.toyota.co.jp>
Date: Mon, 30 Mar 2020 09:24:26 +0900
Subject: agl-basesystem

---
 .../libtiff/files/CVE-2017-17095.patch             | 46 ++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 external/poky/meta/recipes-multimedia/libtiff/files/CVE-2017-17095.patch

(limited to 'external/poky/meta/recipes-multimedia/libtiff/files/CVE-2017-17095.patch')

diff --git a/external/poky/meta/recipes-multimedia/libtiff/files/CVE-2017-17095.patch b/external/poky/meta/recipes-multimedia/libtiff/files/CVE-2017-17095.patch
new file mode 100644
index 00000000..9b9962ed
--- /dev/null
+++ b/external/poky/meta/recipes-multimedia/libtiff/files/CVE-2017-17095.patch
@@ -0,0 +1,46 @@
+From 9171da596c88e6a2dadcab4a3a89dddd6e1b4655 Mon Sep 17 00:00:00 2001
+From: Nathan Baker <elitebadger@gmail.com>
+Date: Thu, 25 Jan 2018 21:28:15 +0000
+Subject: [PATCH] Add workaround to pal2rgb buffer overflow.
+
+CVE: CVE-2017-17095
+
+Upstream-Status: Backport (unchanged) [gitlab.com/libtiff/libtiff/commit/9171da5...]
+
+Signed-off-by: Joe Slater <joe.slater@windriver.com.
+
+---
+ tools/pal2rgb.c |   17 +++++++++++++++--
+ 1 file changed, 15 insertions(+), 2 deletions(-)
+
+diff --git a/tools/pal2rgb.c b/tools/pal2rgb.c
+index 0423598..01fcf94 100644
+--- a/tools/pal2rgb.c
++++ b/tools/pal2rgb.c
+@@ -182,8 +182,21 @@ main(int argc, char* argv[])
+ 	{ unsigned char *ibuf, *obuf;
+ 	  register unsigned char* pp;
+ 	  register uint32 x;
+-	  ibuf = (unsigned char*)_TIFFmalloc(TIFFScanlineSize(in));
+-	  obuf = (unsigned char*)_TIFFmalloc(TIFFScanlineSize(out));
++	  tmsize_t tss_in = TIFFScanlineSize(in);
++	  tmsize_t tss_out = TIFFScanlineSize(out);
++	  if (tss_out / tss_in < 3) {
++		/*
++		 * BUG 2750: The following code does not know about chroma
++		 * subsampling of JPEG data. It assumes that the output buffer is 3x
++		 * the length of the input buffer due to exploding the palette into
++		 * RGB tuples. If this assumption is incorrect, it could lead to a
++		 * buffer overflow. Go ahead and fail now to prevent that.
++		 */
++		fprintf(stderr, "Could not determine correct image size for output. Exiting.\n");
++		return -1;
++      }
++	  ibuf = (unsigned char*)_TIFFmalloc(tss_in);
++	  obuf = (unsigned char*)_TIFFmalloc(tss_out);
+ 	  switch (config) {
+ 	  case PLANARCONFIG_CONTIG:
+ 		for (row = 0; row < imagelength; row++) {
+-- 
+1.7.9.5
+
-- 
cgit 1.2.3-korg