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  1. JDK
  2. JDK-8076641

getNextEntry throws ArrayIndexOutOfBoundsException when unzipping file

    Details

    • Subcomponent:
    • Resolved In Build:
      b60
    • CPU:
      x86_64
    • OS:
      windows_7
    • Verification:
      Verified

      Backports

        Description

        FULL PRODUCT VERSION :
        java version "1.8.0_40"
        Java(TM) SE Runtime Environment (build 1.8.0_40-b26)
        Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode)

        ADDITIONAL OS VERSION INFORMATION :
        Microsoft Windows [Version 6.1.7601]

        A DESCRIPTION OF THE PROBLEM :
        When attempting to unzip a data file an ArrayIndexOutOfBoundsException is thrown when iterating over the contents of the zip file.

        The file begins the following:
          50 4b 03 04 14 00 00 00 00 00 8c bc 5c 44 00 00
          00 00 00 00 00 00 00 00 00 00 0d 00 2c 00 4e 44
          44 46 20 50 6c 75 73 20 44 42 2f 4e 55 20 00 4e
          55 43 58 0d 00 4e 00 44 00 44 00 46 00 20 00 50
          00 6c 00 75 00 73 00 20 00 44 00 42 00 2f 00 0a
          00 04 00 00 00 00 00 50 4b 03 04 14 00 00 00 00
          00 8c bc 5c 44 00 00 00 00 00 00 00 00 00 00 00



        REGRESSION. Last worked in version 7u76

        ADDITIONAL REGRESSION INFORMATION:
        c:\Program Files (x86)\Java\jre7\bin>java -version
        java version "1.7.0_76"
        Java(TM) SE Runtime Environment (build 1.7.0_76-b13)
        Java HotSpot(TM) Client VM (build 24.76-b04, mixed mode, sharing)


        STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
        Run included test program with a zip file containing XCeed unicode extra field data. The application will crash.

        I can provide a sample zip file upon request



        EXPECTED VERSUS ACTUAL BEHAVIOR :
        EXPECTED -
        Tthe application will succeed in unzipping the files into the destination directory.
        ACTUAL -
        The actual results were the stack trace listed in the logs.

        ERROR MESSAGES/STACK TRACES THAT OCCUR :
        UnzipTest>java Unzipper
        Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 46
                at java.util.zip.ZipUtils.get16(Unknown Source)
                at java.util.zip.ZipEntry.setExtra0(Unknown Source)
                at java.util.zip.ZipInputStream.readLOC(Unknown Source)
                at java.util.zip.ZipInputStream.getNextEntry(Unknown Source)
                at Unzipper.main(Unzipper.java:34)


        REPRODUCIBILITY :
        This bug can be reproduced always.

        ---------- BEGIN SOURCE ----------
        import java.io.File;
        import java.io.ByteArrayInputStream;
        import java.io.FileOutputStream;
        import java.io.IOException;
        import java.nio.file.Files;
        import java.nio.file.Path;
        import java.nio.file.Paths;
        import java.time.LocalDateTime;
        import java.time.format.DateTimeFormatter;
        import java.util.zip.ZipEntry;
        import java.util.zip.ZipInputStream;

        public class Unzipper {

        public static void main(String[] args) throws IOException {
        DateTimeFormatter df = DateTimeFormatter.ofPattern("yyyyMMddHHmmss");
        String now = LocalDateTime.now().format(df);
        String WORKPATH = "C:\\maidev\\FDBUpdate\\";
        String DATAPATH = WORKPATH + "DATA_" + now + "\\";
        String FDB_FILENAME = "NDDF Plus UPD.zip";

        // Unzip
        String unzipPath = WORKPATH + FDB_FILENAME;


        Path filePath = Paths.get(unzipPath);
        byte[] fileBytes = Files.readAllBytes(filePath);
        ByteArrayInputStream bytes = new ByteArrayInputStream(fileBytes);
        ZipInputStream zis = new ZipInputStream(bytes);
        ZipEntry entry;
        while ((entry = zis.getNextEntry()) != null) {
        int count;
        int n = entry.getName().lastIndexOf("/");
        String filename = entry.getName().substring(n + 1);
        File fileOut = new File(DATAPATH + filename);
        if (entry.isDirectory()) {
        fileOut.mkdirs();
        }
        else
        {
        byte[] buffer = (byte[]) java.lang.reflect.Array.newInstance(java.lang.Byte .TYPE, 1024);
        FileOutputStream fos = new FileOutputStream(fileOut);
        // read byte content from zipped file
        while ((count = zis.read(buffer, 0, 1024)) != -1) {
        fos.write(buffer, 0, count);
        }

        fos.close();
        }
        }

        zis.close();
        }
        }

        ---------- END SOURCE ----------

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                • Assignee:
                  sherman Xueming Shen
                  Reporter:
                  webbuggrp Webbug Group
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                  • Created:
                    Updated:
                    Resolved: