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MitreCVE-2020-36242

HistoryFeb 07, 2021 - 8:15 p.m.

CVE-2020-36242

2021-02-0720:15:12

CWE-190

CWE-787

mitre

web.nvd.nist.gov

345

cve-2020-36242

cryptography package

python

integer overflow

buffer overflow

nvd

CVSS2

6.4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:N/A:P

CVSS3

9.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

9.2

Confidence

High

EPSS

0.008

Percentile

82.3%

JSON

In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.

Affected configurations

Nvd

Node

cryptography.iocryptographyRange<3.3.2python

Node

fedoraprojectfedoraMatch33

Node

oraclecommunications_cloud_native_core_network_function_cloud_native_environmentMatch1.10.0

VendorProductVersionCPE
cryptography.iocryptography*cpe:2.3:a:cryptography.io:cryptography:*:*:*:*:*:python:*:*
fedoraprojectfedora33cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
oraclecommunications_cloud_native_core_network_function_cloud_native_environment1.10.0cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cryptography.io	cryptography	*	cpe:2.3:a:cryptography.io:cryptography::::::python::*
fedoraproject	fedora	33	cpe:2.3:o:fedoraproject:fedora:33:::::::*
oracle	communications_cloud_native_core_network_function_cloud_native_environment	1.10.0	cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:::::::*