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cve[email protected]CVE-2020-36242
HistoryFeb 07, 2021 - 8:15 p.m.

CVE-2020-36242

2021-02-0720:15:12
CWE-190
CWE-787
web.nvd.nist.gov
333
6
cve-2020-36242
cryptography package
python
integer overflow
buffer overflow
nvd

6.4 Medium

CVSS2

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

9.1 High

CVSS3

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

9.2 High

AI Score

Confidence

High

0.008 Low

EPSS

Percentile

82.3%

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_projectcryptographyRange<3.3.2python
Node
fedoraprojectfedoraMatch33
Node
oraclecommunications_cloud_native_core_network_function_cloud_native_environmentMatch1.10.0

Social References

More

6.4 Medium

CVSS2

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

9.1 High

CVSS3

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

9.2 High

AI Score

Confidence

High

0.008 Low

EPSS

Percentile

82.3%