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[SECURITY] Fix Temporary File Information Disclosure Vulnerability #71

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[SECURITY] Fix Temporary File Information Disclosure Vulnerability #71

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3 changes: 2 additions & 1 deletion itext/src/main/java/com/itextpdf/text/pdf/PdfStamper.java
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Expand Up @@ -59,6 +59,7 @@
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.file.Files;
import java.security.cert.Certificate;
import java.util.HashMap;
import java.util.List;
Expand Down Expand Up @@ -700,7 +701,7 @@ public static PdfStamper createSignature(final PdfReader reader, final OutputStr
}
else {
if (tempFile.isDirectory())
tempFile = File.createTempFile("pdf", ".pdf", tempFile);
tempFile = Files.createTempFile(tempFile.toPath(), "pdf", ".pdf").toFile();
FileOutputStream fout = new FileOutputStream(tempFile);
stp = new PdfStamper(reader, fout, pdfVersion, append);
stp.sigApp = new PdfSignatureAppearance(stp.stamper);
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3 changes: 2 additions & 1 deletion itext/src/test/java/com/itextpdf/testutils/TestResourceUtils.java
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Expand Up @@ -54,6 +54,7 @@
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintStream;
import java.nio.file.Files;

import com.itextpdf.text.pdf.PdfReader;

Expand Down Expand Up @@ -120,7 +121,7 @@ public static File getBytesAsTempFile(byte[] bytes) throws IOException {
private static File writeStreamToTempFile(String id, InputStream is) throws IOException{
if (is == null) throw new NullPointerException("Input stream is null");

File f = File.createTempFile(TESTPREFIX + id + "-", ".pdf");
File f = Files.createTempFile(TESTPREFIX + id + "-", ".pdf").toFile();
f.deleteOnExit();

final OutputStream os = new BufferedOutputStream(new FileOutputStream(f));
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3 changes: 2 additions & 1 deletion pdfa/src/main/java/com/itextpdf/text/pdf/PdfAStamper.java
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Expand Up @@ -49,6 +49,7 @@
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.file.Files;

/**
* Extension of PdfStamper that will attempt to keep a file
Expand Down Expand Up @@ -146,7 +147,7 @@ public static PdfAStamper createSignature(final PdfReader reader, final OutputSt
}
else {
if (tempFile.isDirectory())
tempFile = File.createTempFile("pdf", null, tempFile);
tempFile = Files.createTempFile(tempFile.toPath(), "pdf", null).toFile();
FileOutputStream fout = new FileOutputStream(tempFile);
stp = new PdfAStamper(reader, fout, pdfVersion, append, conformanceLevel);
stp.sigApp = new PdfSignatureAppearance(stp.stamper);
Expand Down