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I'll take a look when this project is further along, but the TL;DR is don't spend a lot of time fuzzing this project when it's not ready for prime usage yet.
Product affected:
gzipfinfo 20190919
OS Details:
Linux 4.15.0-65-generic #74-Ubuntu SMP x86_64 x86_64 x86_64 GNU/Linux
Summary
While fuzzing
gzipfinfo
multiple hangs were observed which could lead to denial of service, I think this happens because of infinite recursion.Debug BT
Vulnerable code
Reference: https://github.com/libyal/libgzipf/blob/master/gzipftools/gzipfinfo.c#L231-L234
To reproduce:
gzipfinfo $POC
Attached POC.zip for your reference.
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