On 06. 01. 22 14:22, lxr1210--- via Python-Dev wrote:
Hi all,

I am currently doing some research on the security of CPython. I used the open source vulnerability analysis engine, Infer(https://fbinfer.com/), to scan the native code of CPython 3.10.0.

The scan results show that there are still a number of vulnerabilities in the CPython native code, such as Null dereference, Uninitialized variable, Resource/Memory leak, etc. Moreover, I found that some of the vulnerabilities are related to Python/C API. I enclose the vulnerability report for your reference.

The first page of these looks like false positives (except one might be a flaw in test code). But that's par for the course. I've spent a lot of time digging through reports like these. Sometimes there's a bug worth fixing, sometimes it's even an actual vulnerability, but in my experience, most of what tools find in CPython is not actionable.

If you do find a security vulnerability, consider reporting it privately to the security team: see https://www.python.org/dev/security/


Based on the research of the result, I tried to design a tool to automatically detect and repair vulnerabilities in CPython and make this tool available. See:

https://github.com/PVMPATCH/PVMPatch

Python is my favourite programming language. I sincerely hope that I can help Python become stronger and safer. I hope this discovery can be useful for you to develop Python in the future.

Thank you for your time and consideration!


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