[oe-commits] [openembedded-core] 44/49: tiff: Security fix for CVE-2017-7601

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commit 7423b8318a381d139590f6ab2c50874d0eb775a6
Author: Rajkumar Veer <rveer at mvista.com>
AuthorDate: Fri Nov 3 22:31:50 2017 -0700

    tiff: Security fix for CVE-2017-7601
    
    Signed-off-by: Rajkumar Veer <rveer at mvista.com>
    Signed-off-by: Armin Kuster <akuster at mvista.com>
---
 .../libtiff/files/CVE-2017-7601.patch              | 52 ++++++++++++++++++++++
 meta/recipes-multimedia/libtiff/tiff_4.0.7.bb      |  1 +
 2 files changed, 53 insertions(+)

diff --git a/meta/recipes-multimedia/libtiff/files/CVE-2017-7601.patch b/meta/recipes-multimedia/libtiff/files/CVE-2017-7601.patch
new file mode 100644
index 0000000..1b3c6c8
--- /dev/null
+++ b/meta/recipes-multimedia/libtiff/files/CVE-2017-7601.patch
@@ -0,0 +1,52 @@
+From 0a76a8c765c7b8327c59646284fa78c3c27e5490 Mon Sep 17 00:00:00 2001
+From: erouault <erouault>
+Date: Wed, 11 Jan 2017 16:13:50 +0000
+Subject: [PATCH] * libtiff/tif_jpeg.c: validate BitsPerSample in
+ JPEGSetupEncode() to avoid undefined behaviour caused by invalid shift
+ exponent. Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2648
+
+Upstream-Status: Backport
+
+CVE: CVE-2017-7601
+Signed-off-by: Rajkumar Veer <rveer at mvista.com>
+Index: tiff-4.0.7/ChangeLog
+===================================================================
+--- tiff-4.0.7.orig/ChangeLog	2017-04-25 18:21:32.856116417 +0530
++++ tiff-4.0.7/ChangeLog	2017-04-25 18:35:31.904129477 +0530
+@@ -1,4 +1,3 @@
+-
+ 2017-01-12 Even Rouault <even.rouault at spatialys.com>
+ 
+ 	* libtiff/tif_ojpeg.c: fix leak in OJPEGReadHeaderInfoSecTablesQTable,
+@@ -9,6 +8,12 @@
+ 
+ 2017-01-11 Even Rouault <even.rouault at spatialys.com>
+ 
++	* libtiff/tif_jpeg.c: validate BitsPerSample in JPEGSetupEncode() to avoid
++	undefined behaviour caused by invalid shift exponent.
++	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2648
++
++2017-01-11 Even Rouault <even.rouault at spatialys.com>
++
+ 	* libtiff/tif_dirread.c: avoid division by floating point 0 in
+ 	TIFFReadDirEntryCheckedRational() and TIFFReadDirEntryCheckedSrational(),
+ 	and return 0 in that case (instead of infinity as before presumably)
+Index: tiff-4.0.7/libtiff/tif_jpeg.c
+===================================================================
+--- tiff-4.0.7.orig/libtiff/tif_jpeg.c	2017-04-25 18:21:32.744116415 +0530
++++ tiff-4.0.7/libtiff/tif_jpeg.c	2017-04-25 18:38:02.200131817 +0530
+@@ -1632,7 +1632,13 @@
+                                    "Invalig horizontal/vertical sampling value");
+                       return (0);
+                 }
+-
++                if( td->td_bitspersample > 16 )
++                {
++                    TIFFErrorExt(tif->tif_clientdata, module,
++                                 "BitsPerSample %d not allowed for JPEG",
++                                 td->td_bitspersample);
++                    return (0);
++                }
+ 		/*
+ 		 * A ReferenceBlackWhite field *must* be present since the
+ 		 * default value is inappropriate for YCbCr.  Fill in the
diff --git a/meta/recipes-multimedia/libtiff/tiff_4.0.7.bb b/meta/recipes-multimedia/libtiff/tiff_4.0.7.bb
index 73deeba..7f438da 100644
--- a/meta/recipes-multimedia/libtiff/tiff_4.0.7.bb
+++ b/meta/recipes-multimedia/libtiff/tiff_4.0.7.bb
@@ -24,6 +24,7 @@ SRC_URI = "http://download.osgeo.org/libtiff/tiff-${PV}.tar.gz \
            file://CVE-2017-7595.patch \
            file://CVE-2017-7596.patch \
            file://CVE-2017-7598.patch \
+           file://CVE-2017-7601.patch \
         "
 
 SRC_URI[md5sum] = "77ae928d2c6b7fb46a21c3a29325157b"

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