picklescan - Zip Flag Bit Exploit Crashes Picklescan But Not PyTorch
Summary
picklescan - Zip Flag Bit Exploit Crashes Picklescan But Not PyTorch
Original description
The description as published by the source.
picklescan before 0.0.23 fails to detect malicious pickle files inside PyTorch model archives when certain ZIP file flag bits are modified. By flipping specific bits in the ZIP file headers, an attacker can embed malicious pickle files that remain undetected by PickleScan while still being successfully loaded by PyTorch's torch.load(). This can lead to arbitrary code execution when loading a compromised model.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- advisory sonatype.com
- patch github.com