CVE Vulnerability

CVE-2020-13757

Python-RSA before 4.1 ignores leading '' bytes during decryption of ciphertext. This could conceivably have a security-relevant impact, e.g., by helping an attacker to infer that an application uses Python-RSA, or if the length of accepted ciphertext affects application behavior (such as by causing excessive memory allocation).

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/sybrenstuvel/python-rsa/issues/146 Third Party Advisory
https://github.com/sybrenstuvel/python-rsa/issues/146#issuecomment-641845667
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2KILTHBHNSDUCYV22ODLOKTICJJ7JQIQ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZYB65VNILRBTXL6EITQTH2PZPK7I23MW/
https://usn.ubuntu.com/4478-1/
Configurations

Configuration 1

cpe:2.3:a:python-rsa_project:python-rsa:4.0:*:*:*:*:*:*:*
Information

Published : 2020-06-01 07:15

Updated : 2020-09-02 04:15

NVD link : CVE-2020-13757

Mitre link : CVE-2020-13757

Products Affected
No products.
CWE
CWE-327