SEGV in CFX_BaseSegmentedArray::Iterate() when CS has malformed dictionary.

testing/resources/bug_481363.in

Index: testing/resources/bug_481363.in
diff --git a/testing/resources/bug_481363.in b/testing/resources/bug_481363.in
new file mode 100644
index 0000000000000000000000000000000000000000..32a724d3632c2a3153cad7b34a18b01e9b997032
--- /dev/null
+++ b/testing/resources/bug_481363.in
@@ -0,0 +1,52 @@
+{{header}}
+{{object 1 0}} <<
+  /Type /Pages
+  /Kids [2 0 R]
+  /Count 1
+>>
+endobj
+{{object 2 0}} <<
+<<
+  /Type /Page
+  /Parent 1 0 R
+  /MediaBox [0 0 612 792]
+  /Contents [4 0 R]
+  /Resources <<
+    /Font <</F1 5 0 R>>
+    /ColorSpace<</CS1 6 0 R>>
+  >>
+>>
+endobj
+{{object 3 0}} <<
+  /Type /Catalog
+  /Pages 1 0 R
+>>
+endobj
+{{object 4 0}} <<
+  /Length 0
+>> stream
+/CS1 cs 0 -100 -100 sc
+100 500 100 100 re b
+endstream
+endobj
+{{object 5 0)) <<
+  /Type /Font
+  /Subtype /Type1
+  /BaseFont /He
+>>
+endobj
+% Dictionary object malformed: 4< vs <<.
+{{object 6 0}} [
+  /Lab 4<
+    /WhitePoint [0.9505 1.00 1.0890 ]
+    /Range [-100 100 -100 100 ]
+  >>
+]
+endobj
+{{xref}}
+trailer <<
+  /Size 0
+  /Root 3 0 R
+>>
+{{startxref}}
+%%EOF