diff --git a/jasper.spec b/jasper.spec
index 232448c..c2e7f3a 100644
--- a/jasper.spec
+++ b/jasper.spec
@@ -1,14 +1,13 @@
 
 # NOTE: packages that can use jasper:
 # ImageMagick
-# kdelibs
 # netpbm
 
 Summary: Implementation of the JPEG-2000 standard, Part 1
 Name:    jasper
 Group:   System Environment/Libraries
 Version: 1.900.1
-Release: 8%{?dist}
+Release: 9%{?dist}
 
 License: JasPer
 URL:     http://www.ece.uvic.ca/~mdadams/jasper/
@@ -21,6 +20,9 @@ Patch2: jasper-1.701.0-GL-ac.patch
 # CVE-2007-2721 (bug #240397)
 # borrowed from http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=413041;msg=88
 Patch3: patch-libjasper-stepsizes-overflow.diff
+# borrowed from http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=469786 
+Patch4: jpc_dec.c.patch
+
 
 BuildRequires: automake 
 BuildRequires: libjpeg-devel
@@ -63,6 +65,7 @@ Requires: %{name} = %{version}-%{release}
 
 %patch1 -p1 -b .GL
 %patch3 -p1 -b .CVE-2007-2721
+%patch4 -p1 -b .jpc_dec_assertion
 
 
 %build
@@ -109,12 +112,12 @@ rm -rf $RPM_BUILD_ROOT
 %defattr(-,root,root,-)
 %doc doc/*
 %{_includedir}/jasper/
-%{_libdir}/lib*.so
+%{_libdir}/libjasper.so
 
 %files libs
 %defattr(-,root,root,-)
 %doc COPYRIGHT LICENSE NEWS README
-%{_libdir}/lib*.so.*
+%{_libdir}/libjasper.so.1*
 
 %files utils
 %defattr(-,root,root,-)
@@ -124,6 +127,10 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Sun Jan 25 2009 Rex Dieter <rdieter@fedoraproject.org> 1.900.1-9
+- patch for "jpc_dec_tiledecode: Assertion `dec->numcomps == 3' failed)
+  (#481284, #481291)
+
 * Fri Feb 08 2008 Rex Dieter <rdieter@fedoraproject.org> 1.900.1-8
 - respin (gcc43)
 
diff --git a/jpc_dec.c.patch b/jpc_dec.c.patch
new file mode 100644
index 0000000..ae1cd06
--- /dev/null
+++ b/jpc_dec.c.patch
@@ -0,0 +1,18 @@
+diff -urN jasper-1.900.1/src/libjasper/jpc/jpc_dec.c jasper-1.900.1-fix/src/libjasper/jpc/jpc_dec.c
+--- jasper-1.900.1/src/libjasper/jpc/jpc_dec.c	2007-01-19 14:43:07.000000000 -0700
++++ jasper-1.900.1-fix/src/libjasper/jpc/jpc_dec.c	2008-03-06 16:51:12.000000000 -0700
+@@ -1069,12 +1069,12 @@
+ 	/* Apply an inverse intercomponent transform if necessary. */
+ 	switch (tile->cp->mctid) {
+ 	case JPC_MCT_RCT:
+-		assert(dec->numcomps == 3);
++		assert(dec->numcomps >= 3);
+ 		jpc_irct(tile->tcomps[0].data, tile->tcomps[1].data,
+ 		  tile->tcomps[2].data);
+ 		break;
+ 	case JPC_MCT_ICT:
+-		assert(dec->numcomps == 3);
++		assert(dec->numcomps >= 3);
+ 		jpc_iict(tile->tcomps[0].data, tile->tcomps[1].data,
+ 		  tile->tcomps[2].data);
+ 		break;