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Posted to issues@commons.apache.org by "nick allen (Jira)" <ji...@apache.org> on 2022/01/20 11:16:00 UTC

[jira] [Created] (COMPRESS-605) Failed to parse Non-zip64 signed apk with data descriptor

nick allen created COMPRESS-605:
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             Summary: Failed to parse Non-zip64 signed apk with data descriptor
                 Key: COMPRESS-605
                 URL: https://issues.apache.org/jira/browse/COMPRESS-605
             Project: Commons Compress
          Issue Type: Bug
          Components: Archivers
    Affects Versions: 1.21
            Reporter: nick allen


I can't upload my apk due to security policy of my company, but I do find where the problem lies.

In org.apache.commons.compress.archivers.zip.ZipArchiveInputStream#readDataDescriptor we check whether following bytes are signaures to determine whethere size is 8 bytes or 4 bytes. Because what following is apk signing block so it will always thought "size" takes 8 bytes.

So (4 + 4 = 8) extra bytes were read. Which leading to org.apache.commons.compress.archivers.zip.ZipArchiveInputStream#isApkSigningBlock also return false.



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