CVE-2021-33430

Name	CVE-2021-33430
Description	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 vulneraility; 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
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
numpy (PTS)	bullseye	1:1.19.5-1	vulnerable
	bookworm	1:1.24.2-1	fixed
	trixie	1:1.24.2-2	fixed
	sid	1:1.26.4+ds-8	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
numpy	source	(unstable)	1:1.21.4-2

Notes

[bullseye] - numpy <no-dsa> (Minor issue)
https://github.com/numpy/numpy/issues/18939
https://github.com/numpy/numpy/pull/18989
https://github.com/numpy/numpy/commit/16f7824b4d935b6aee98298ca4123d57174a6f2e (v1.22.0.dev0)