CVE-2020-13757: PYSEC-2020-99 - Python-RSA before 4.1 ignores leading '\0' bytes during decryption of ciphertext. This could conceivably have a security-relevant impact, e.

CVE-2020-13757 · Severity: low · CVSS 3.1 · Published 2020-06-01

Technologies: rsa (PyPI). Vendors: PyPI.

Executive brief

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).

Affected products

PyPI rsa

Related threats

PYSEC-2020-100 - It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to dec
PYSEC-2016-10 - The verify function in the RSA package for Python (Python-RSA) before 3.3 allows attackers to spoof signatures with a small public exponent