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Posted to issues@commons.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2021/06/14 08:00:30 UTC
[jira] [Work logged] (COMPRESS-514) SevenZFile fails with encoded
header over 2GiB
[ https://issues.apache.org/jira/browse/COMPRESS-514?focusedWorklogId=610511&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-610511 ]
ASF GitHub Bot logged work on COMPRESS-514:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 14/Jun/21 08:00
Start Date: 14/Jun/21 08:00
Worklog Time Spent: 10m
Work Description: garydgregory commented on pull request #98:
URL: https://github.com/apache/commons-compress/pull/98#issuecomment-860048788
Please rebase on master. Recent changes should allow all builds to be green including Java 16 and 17-EA.
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Issue Time Tracking
-------------------
Worklog Id: (was: 610511)
Time Spent: 2h (was: 1h 50m)
> SevenZFile fails with encoded header over 2GiB
> ----------------------------------------------
>
> Key: COMPRESS-514
> URL: https://issues.apache.org/jira/browse/COMPRESS-514
> Project: Commons Compress
> Issue Type: Bug
> Components: Archivers
> Affects Versions: 1.20
> Reporter: A Kelday
> Priority: Minor
> Attachments: HeaderChannelBuffer.java
>
> Time Spent: 2h
> Remaining Estimate: 0h
>
> When reading what some may call a large encrypted 7zip file (1.2TB with 22 million files), the read fails at the header stage with the trace below. Is this within the spec? I've written some code to handle it, because I did actually need to extract the file in java. If that's of any use I can provide it (it's a naive wrapper that just pages in a buffer at a time).
>
> {code:java}
> Exception in thread "main" java.io.IOException: Cannot handle unpackSize2416988886
> at org.apache.commons.compress.archivers.sevenz.SevenZFile.assertFitsIntoInt(SevenZFile.java:1523)
> at org.apache.commons.compress.archivers.sevenz.SevenZFile.readEncodedHeader(SevenZFile.java:622)
> at org.apache.commons.compress.archivers.sevenz.SevenZFile.initializeArchive(SevenZFile.java:532)
> at org.apache.commons.compress.archivers.sevenz.SevenZFile.readHeaders(SevenZFile.java:468)
> at org.apache.commons.compress.archivers.sevenz.SevenZFile.<init>(SevenZFile.java:337)
> at org.apache.commons.compress.archivers.sevenz.SevenZFile.<init>(SevenZFile.java:129)
> at org.apache.commons.compress.archivers.sevenz.SevenZFile.<init>(SevenZFile.java:116)
> {code}
> 7zip itself can also open it (and display/extract etc.), here are the stats:
>
>
> {code:java}
> Size: 2 489 903 580 875
> Packed Size: 1 349 110 308 832
> Folders: 40 005
> Files: 22 073 957
> CRC: E26F6A96
> {code}
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