tiff: security fix CVE-2018-10963

Denial of service described at https://nvd.nist.gov/vuln/detail/CVE-2018-10963.

(From OE-Core rev: d19a9b41d3b2dcba3b102a8289b7787b4b131e96)

Signed-off-by: Joe Slater <joe.slater@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 39 insertions, 0 deletions

diff --git a/meta/recipes-multimedia/libtiff/files/CVE-2018-10963.patch b/meta/recipes-multimedia/libtiff/files/CVE-2018-10963.patch
new file mode 100644
index 0000000000..7252298b52
--- /dev/null
+++ b/meta/recipes-multimedia/libtiff/files/CVE-2018-10963.patch
@@ -0,0 +1,39 @@
+From de144fd228e4be8aa484c3caf3d814b6fa88c6d9 Mon Sep 17 00:00:00 2001
+From: Even Rouault <even.rouault@spatialys.com>
+Date: Sat, 12 May 2018 14:24:15 +0200
+Subject: [PATCH] TIFFWriteDirectorySec: avoid assertion. Fixes
+ http://bugzilla.maptools.org/show_bug.cgi?id=2795.
+ CVE-2018-10963
+
+---
+CVE: CVE-2018-10963
+
+Upstream-Status: Backport [gitlab.com/libtiff/libtiff/commit/de144f...]
+
+Signed-off-by: Joe Slater <joe.slater@windriver.com>
+
+---
+ libtiff/tif_dirwrite.c |    7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+diff --git a/libtiff/tif_dirwrite.c b/libtiff/tif_dirwrite.c
+index 2430de6..c15a28d 100644
+--- a/libtiff/tif_dirwrite.c
++++ b/libtiff/tif_dirwrite.c
+@@ -695,8 +695,11 @@ TIFFWriteDirectorySec(TIFF* tif, int isimage, int imagedone, uint64* pdiroff)
+                                                                }
+                                                                break;
+                                                        default:
+-                                                               assert(0);   /* we should never get here */
+-                                                               break;
++                                                               TIFFErrorExt(tif->tif_clientdata,module,
++                                                                           "Cannot write tag %d (%s)",
++                                                                           TIFFFieldTag(o),
++                                                                            o->field_name ? o->field_name : "unknown");
++                                                               goto bad;
+                                                }
+                                        }
+                                }
+-- 
+1.7.9.5
+