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-rw-r--r--poi-scratchpad/src/main/java/org/apache/poi/hslf/record/CurrentUserAtom.java8
-rw-r--r--poi-scratchpad/src/test/java/org/apache/poi/hslf/dev/BaseTestPPTIterating.java1
-rw-r--r--test-data/slideshow/clusterfuzz-testcase-minimized-POIHSLFFuzzer-6710128412590080.pptbin0 -> 9732 bytes
-rw-r--r--test-data/spreadsheet/stress.xlsbin62976 -> 63488 bytes
4 files changed, 7 insertions, 2 deletions
diff --git a/poi-scratchpad/src/main/java/org/apache/poi/hslf/record/CurrentUserAtom.java b/poi-scratchpad/src/main/java/org/apache/poi/hslf/record/CurrentUserAtom.java
index 70e422b838..3bdcee13b9 100644
--- a/poi-scratchpad/src/main/java/org/apache/poi/hslf/record/CurrentUserAtom.java
+++ b/poi-scratchpad/src/main/java/org/apache/poi/hslf/record/CurrentUserAtom.java
@@ -35,6 +35,7 @@ import org.apache.poi.hslf.exceptions.CorruptPowerPointFileException;
import org.apache.poi.hslf.exceptions.OldPowerPointFormatException;
import org.apache.poi.poifs.filesystem.DirectoryNode;
import org.apache.poi.poifs.filesystem.DocumentEntry;
+import org.apache.poi.poifs.filesystem.Entry;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.util.IOUtils;
import org.apache.poi.util.LittleEndian;
@@ -120,8 +121,11 @@ public class CurrentUserAtom {
*/
public CurrentUserAtom(DirectoryNode dir) throws IOException {
// Decide how big it is
- DocumentEntry docProps =
- (DocumentEntry)dir.getEntry("Current User");
+ final Entry entry = dir.getEntry("Current User");
+ if (!(entry instanceof DocumentEntry)) {
+ throw new IllegalArgumentException("Had unexpected type of entry for name: Current User: " + entry.getClass());
+ }
+ DocumentEntry docProps = (DocumentEntry) entry;
// If it's clearly junk, bail out
if(docProps.getSize() > 131072) {
diff --git a/poi-scratchpad/src/test/java/org/apache/poi/hslf/dev/BaseTestPPTIterating.java b/poi-scratchpad/src/test/java/org/apache/poi/hslf/dev/BaseTestPPTIterating.java
index 4dac9d21bd..0af50391db 100644
--- a/poi-scratchpad/src/test/java/org/apache/poi/hslf/dev/BaseTestPPTIterating.java
+++ b/poi-scratchpad/src/test/java/org/apache/poi/hslf/dev/BaseTestPPTIterating.java
@@ -60,6 +60,7 @@ public abstract class BaseTestPPTIterating {
static final Map<String,Class<? extends Throwable>> EXCLUDED = new HashMap<>();
static {
EXCLUDED.put("clusterfuzz-testcase-minimized-POIHSLFFuzzer-6416153805979648.ppt", Exception.class);
+ EXCLUDED.put("clusterfuzz-testcase-minimized-POIHSLFFuzzer-6710128412590080.ppt", RuntimeException.class);
}
public static Stream<Arguments> files() {
diff --git a/test-data/slideshow/clusterfuzz-testcase-minimized-POIHSLFFuzzer-6710128412590080.ppt b/test-data/slideshow/clusterfuzz-testcase-minimized-POIHSLFFuzzer-6710128412590080.ppt
new file mode 100644
index 0000000000..f47228eec7
--- /dev/null
+++ b/test-data/slideshow/clusterfuzz-testcase-minimized-POIHSLFFuzzer-6710128412590080.ppt
Binary files differ
diff --git a/test-data/spreadsheet/stress.xls b/test-data/spreadsheet/stress.xls
index 76b80d3e77..e084a6c0b2 100644
--- a/test-data/spreadsheet/stress.xls
+++ b/test-data/spreadsheet/stress.xls
Binary files differ