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https://issues.apache.org/jira/browse/COMPRESS-567?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17291474#comment-17291474
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Peter Lee commented on COMPRESS-567:
------------------------------------
Just curious about the test : how is the test file
_Base64.getDecoder().decode("UEsFBgAAAQD//////////1AAJP9QAA==")_ generated?
I believe this zip is generated by some fuzzer, and you encoded it with Base64
to simpify the test. Am I right?
> IllegalArgumentException in ZipFile.positionAtCentralDirectory
> --------------------------------------------------------------
>
> Key: COMPRESS-567
> URL: https://issues.apache.org/jira/browse/COMPRESS-567
> Project: Commons Compress
> Issue Type: Bug
> Affects Versions: 1.20
> Reporter: Fabian Meumertzheim
> Priority: Major
> Attachments: crash.zip
>
>
> The following snippet of code throws an undeclared IllegalArgumentException:
> {code:java}
> byte[] bytes = Base64.getDecoder().decode("UEsFBgAAAQD//////////1AAJP9QAA==");
> SeekableInMemoryByteChannel input = new SeekableInMemoryByteChannel(bytes);
> try {
> ZipFile file = new ZipFile(input);
> } catch (IOException ignored) {}
> {code}
> The stack trace is:
> {noformat}
> java.lang.IllegalArgumentException: Position has to be in range 0.. 2147483647
> at
> org.apache.commons.compress.utils.SeekableInMemoryByteChannel.position(SeekableInMemoryByteChannel.java:94)
> at
> org.apache.commons.compress.archivers.zip.ZipFile.positionAtCentralDirectory32(ZipFile.java:1128)
> at
> org.apache.commons.compress.archivers.zip.ZipFile.positionAtCentralDirectory(ZipFile.java:1037)
> at
> org.apache.commons.compress.archivers.zip.ZipFile.populateFromCentralDirectory(ZipFile.java:702)
> at
> org.apache.commons.compress.archivers.zip.ZipFile.<init>(ZipFile.java:371)
> at
> org.apache.commons.compress.archivers.zip.ZipFile.<init>(ZipFile.java:318)
> at
> org.apache.commons.compress.archivers.zip.ZipFile.<init>(ZipFile.java:274)
> {noformat}
> I also attached the input as a ZIP file.
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