diff --git a/ChangeLog b/ChangeLog
index 12e0370b..cd2fa171 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -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
diff --git a/libtiff/tif_ojpeg.c b/libtiff/tif_ojpeg.c
index ac70d1b1..bd4cff5d 100644
--- a/libtiff/tif_ojpeg.c
+++ b/libtiff/tif_ojpeg.c
@@ -1,4 +1,4 @@
-/* $Id: tif_ojpeg.c,v 1.67 2017-01-12 17:43:26 erouault Exp $ */
+/* $Id: tif_ojpeg.c,v 1.68 2017-01-12 19:23:20 erouault Exp $ */
 
 /* WARNING: The type of JPEG encapsulation defined by the TIFF Version 6.0
    specification is now totally obsolete and deprecated for new applications and
@@ -1790,7 +1790,10 @@ OJPEGReadHeaderInfoSecTablesQTable(TIFF* tif)
 			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 @@ OJPEGReadHeaderInfoSecTablesDcTable(TIFF* tif)
 				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);
 		}