Medium severity · published Dec 17, 2021
CVE-2021-41496
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…
5.5
CVSS
0.4%
EPSS
No
On KEV
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)
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NU
Numpy · Numpy
before 1.19.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41496
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-41496
Exploit
https://github.com/numpy/numpy/issues/19000
Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html
More from Numpy
9.8
CVE-2019-6446
An issue was discovered in NumPy before 1.16.3
7.5
CVE-2017-12852
The numpy.pad function in Numpy 1.13.1 and older versions is missing input validation
5.5
CVE-2014-1858
__init__.py in f2py in NumPy before 1.8.1 allows local users to write to arbitrary files via a symlink attack on a temporary file
5.5
CVE-2014-1859
(1) core/tests/test_memmap.py, (2) core/tests/test_multiarray.py, (3) f2py/f2py2e.py, and (4) lib/tests/test_io.py in NumPy before 1.8.1 allow local users to write to arbitrary…
5.3
CVE-2021-41495
Null Pointer Dereference vulnerability exists in numpy.sort in NumPy < and 1.19 in the PyArray_DescrNew function due to missing return-value validation, which allows attackers…