search

onekey-sec / unblob

Extract files from any kind of container formats
https://unblob.org
Other
2.16k stars 80 forks source link

Failed to extract zip64 due to mising values in `is_zip64_` #819

Closed nyuware closed 6 months ago

nyuware commented 6 months ago

Describe the bug We found in our corpus some zip files that fail to extract with out current zip handler.

After some investigation, the file seems to be a zip64 with FFFF values in the Central directory header. sanity check: returning True in is_zip64_eocd correctly carves the zip file.

In conclusion, we should add coverage for zip files that have zip64 "informations" in their central directory headers