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cveMitreCVE-2021-33430
HistoryDec 17, 2021 - 7:15 p.m.

CVE-2021-33430

2021-12-1719:15:07
CWE-120
mitre
web.nvd.nist.gov
115
2
cve
2021
33430
buffer overflow
numpy
pyarray_newfromdescr_int
ctors.c
dos
python code

CVSS2

3.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:S/C:N/I:N/A:P

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

AI Score

5.2

Confidence

High

EPSS

0.001

Percentile

30.3%

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

Affected configurations

Nvd
Node
numpynumpyRange1.9.01.9.3
VendorProductVersionCPE
numpynumpy*cpe:2.3:a:numpy:numpy:*:*:*:*:*:*:*:*

Social References

More

CVSS2

3.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:S/C:N/I:N/A:P

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

AI Score

5.2

Confidence

High

EPSS

0.001

Percentile

30.3%