From 2ea32f7372b65c24b2816f11c04bf59b5090d05b Mon Sep 17 00:00:00 2001
From: erouault <erouault>
Date: Thu, 12 Jan 2017 19:23:20 +0000
Subject: [PATCH 2/2] * libtiff/tif_ojpeg.c: fix leak in
 OJPEGReadHeaderInfoSecTablesQTable, OJPEGReadHeaderInfoSecTablesDcTable and
 OJPEGReadHeaderInfoSecTablesAcTable

Upstream-status: Backport

CVE: CVE-2017-7594 #patch2
Signed-off-by: Rajkumar Veer <rveer@mvista.com>
Index: tiff-4.0.7/ChangeLog
===================================================================
--- tiff-4.0.7.orig/ChangeLog	2017-04-24 16:50:26.465897646 +0530
+++ tiff-4.0.7/ChangeLog	2017-04-24 16:56:20.685888360 +0530
@@ -1,6 +1,7 @@
 2017-01-12 Even Rouault <even.rouault at spatialys.com>
 
-	* libtiff/tif_ojpeg.c: fix leak in OJPEGReadHeaderInfoSecTablesAcTable
+	* libtiff/tif_ojpeg.c: fix leak in OJPEGReadHeaderInfoSecTablesQTable,
+	OJPEGReadHeaderInfoSecTablesDcTable and OJPEGReadHeaderInfoSecTablesAcTable
 	when read fails.
 	Patch by Nicolás Peña.
 	Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2659
Index: tiff-4.0.7/libtiff/tif_ojpeg.c
===================================================================
--- tiff-4.0.7.orig/libtiff/tif_ojpeg.c	2017-04-24 16:52:27.349894477 +0530
+++ tiff-4.0.7/libtiff/tif_ojpeg.c	2017-04-24 16:59:20.001883660 +0530
@@ -1790,7 +1790,10 @@
 			TIFFSeekFile(tif,sp->qtable_offset[m],SEEK_SET); 
 			p=(uint32)TIFFReadFile(tif,&ob[sizeof(uint32)+5],64);
 			if (p!=64)
+                        {
+                                _TIFFfree(ob);
 				return(0);
+                        }
 			sp->qtable[m]=ob;
 			sp->sof_tq[m]=m;
 		}
@@ -1854,7 +1857,10 @@
 				rb[sizeof(uint32)+5+n]=o[n];
 			p=(uint32)TIFFReadFile(tif,&(rb[sizeof(uint32)+21]),q);
 			if (p!=q)
+                        {
+                                _TIFFfree(rb);
 				return(0);
+                        }
 			sp->dctable[m]=rb;
 			sp->sos_tda[m]=(m<<4);
 		}
