tiff: Security fix CVE-2016-10268

(From OE-Core rev: a384e06b6ac12541b9928ecbc5834ef1d505ac0f)

Signed-off-by: Rajkumar Veer <rveer@mvista.com>
Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 31 insertions, 0 deletions

diff --git a/meta/recipes-multimedia/libtiff/files/CVE-2016-10268.patch b/meta/recipes-multimedia/libtiff/files/CVE-2016-10268.patch
new file mode 100644
index 0000000000..03b982a1d9
--- /dev/null
+++ b/meta/recipes-multimedia/libtiff/files/CVE-2016-10268.patch
@@ -0,0 +1,30 @@
+From 5397a417e61258c69209904e652a1f409ec3b9df Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Fri, 2 Dec 2016 22:13:32 +0000
+Subject: [PATCH] * tools/tiffcp.c: avoid uint32 underflow in cpDecodedStrips
+ that can cause various issues, such as buffer overflows in the library.
+ Reported by Agostino Sarubbo. Fixes
+ http://bugzilla.maptools.org/show_bug.cgi?id=2598
+
+Upstream-Status: Backport
+CVE: CVE-2016-10268
+Signed-off-by: Rajkumar Veer <rveer@mvista.com>
+
+---
+ ChangeLog      | 7 +++++++
+ tools/tiffcp.c | 2 +-
+ 2 files changed, 8 insertions(+), 1 deletion(-)
+
+Index: tiff-4.0.7/tools/tiffcp.c
+===================================================================
+--- tiff-4.0.7.orig/tools/tiffcp.c
++++ tiff-4.0.7/tools/tiffcp.c
+@@ -985,7 +985,7 @@ DECLAREcpFunc(cpDecodedStrips)
+                tstrip_t s, ns = TIFFNumberOfStrips(in);
+                uint32 row = 0;
+                _TIFFmemset(buf, 0, stripsize);
+-               for (s = 0; s < ns; s++) {
++               for (s = 0; s < ns && row < imagelength; s++) {
+                        tsize_t cc = (row + rowsperstrip > imagelength) ?
+                            TIFFVStripSize(in, imagelength - row) : stripsize;
+                        if (TIFFReadEncodedStrip(in, s, buf, cc) < 0
diff --git a/meta/recipes-multimedia/libtiff/tiff_4.0.7.bb b/meta/recipes-multimedia/libtiff/tiff_4.0.7.bb
index 5d816fc7ae..9432074d5a 100644
--- a/meta/recipes-multimedia/libtiff/tiff_4.0.7.bb
+++ b/meta/recipes-multimedia/libtiff/tiff_4.0.7.bb
@@ -13,6 +13,7 @@ SRC_URI = "http://download.osgeo.org/libtiff/tiff-${PV}.tar.gz \
            file://CVE-2017-11335.patch \
            file://CVE-2016-10271.patch \
            file://CVE-2016-10093.patch \
+           file://CVE-2016-10268.patch \
           "
 
 SRC_URI[md5sum] = "77ae928d2c6b7fb46a21c3a29325157b"