CVE-2021-41496
MEDIUM5.5EPSS 0.04%Buffer Copy without Checking Size of Input in NumPy
Published: 2/8/2022Modified: 4/28/2026
Description
Buffer overflow in the array_from_pyobj function of fortranobject.c in NumPy < 1.19, which allows attackers to conduct a Denial of Service attacks by carefully constructing an array with negative values. NOTE: The vendor does not agree this is a vulnerability; the negative dimensions can only be created by an already privileged user (or internally)
Affected packages (3)
- Debian/numpyfrom 0
- PyPI/numpyfrom 0, < 1.19
- PyPI/numpyfrom 0, < 1.19.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
References (6)
- ADVISORYhttps://github.com/advisories/GHSA-f7c7-j99h-c22f
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-41496
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-41496
- PATCHhttps://github.com/numpy/numpy
- WEBhttps://github.com/numpy/numpy/issues/19000
- WEBhttps://www.oracle.com/security-alerts/cpujul2022.html