Homepage

Missing Required Cryptographic Step The advisory has been revoked - it doesn't affect any version of package python-rsa  (opens in a new tab)

Threat Intelligence

EPSS
1.43% (73rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL10-PYTHONRSA-9847889
  • published28 Apr 2025
  • disclosed27 May 2020
Report a new vulnerability Found a mistake?

Introduced: 27 May 2020

CVE-2020-13757  (opens in a new tab)
CWE-325  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-rsa package and not the python-rsa package as distributed by RHEL.

Python-RSA before 4.1 ignores leading '\0' 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).