CVEvulnerability

CVE-2020-13757

7.5 HIGH Published 2020-06-01 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-06-01
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
Weaknesses
CWE-327

Description

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 configurations

• python-rsa project python-rsa (< 4.1) • fedoraproject fedora 31 • fedoraproject fedora 32 • canonical ubuntu linux 14.04

Related

Weakness · CWE (1)

  • CWE-327 Use of a Broken or Risky Cryptographic Algorithm weakness

References