Hi
This problem is with p7zip 16.02 on Ubuntu and can be triggered by wim files. It is in function NCompress::NLzx::CDecoder::ReadTable which manuplates array "levels". It can cause heap overflow when reading and writing data to "levels".
Please reply if you want the example files for heap overflow caused by READ or WRITE action.
Please create "private" ticket with attachment in 7-Zip project tickets:
https://sourceforge.net/p/sevenzip/bugs/
I have no full rights in this p7zip project.
So please create all another 7-zip/p7zip related tickets in 7-Zip project page.