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Severe, 6 weeks1498Projects326

1498 severe, 6 weeks · 326 projects

NumPyGHSA-6p56-wp2h-9hxr

NumPy Buffer Overflow (Disputed)

NumPy

CVE-2021-33430 · Published Jan 7, 2022 · updated Sep 26, 2024

Medium5.3
Fix: upgrade to 1.21 or later
GitHub advisory

A Buffer Overflow vulnerability exists in NumPy 1.9.x in the PyArray_NewFromDescr_int function of ctors.c when specifying arrays of large dimensions (over 32) from Python code, which could let a malicious user cause a Denial of Service.

NOTE: The vendor does not agree this is a vulnerability; In (very limited) circumstances a user may be able provoke the buffer overflow, the user is most likely already privileged to at least provoke denial of service by exhausting memory. Triggering this further requires the use of uncommon API (complicated structured dtypes), which is very unlikely to be available to an unprivileged user.

Affected versions

PackageAffectedFixed in
numpy
PyPI
>= 1.9.0, < 1.211.21
Details and references

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