[COMPRESS-605] Failed to parse Non-zip64 signed apk with data descriptor

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.21
• Component/s: Archivers
• Assignee: Unassigned
• Reporter: nick allen
• Created: 20/Jan/22 11:15
• Updated: 21/Mar/22 06:58

Description

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.