USN-4478-2

    Dashboard / Vulnerabilities / USN-4478-2

    USN-4478-2

    Published: 21 Feb 2022Last Modified: 25 Jun 2026

    Summary: python-rsa vulnerability

    Details: USN-4478-1 fixed a vulnerability in Python-RSA. This update provides the corresponding update for Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. Original advisory details: It was discovered that Python-RSA incorrectly handled certain ciphertexts. An attacker could possibly use this issue to obtain sensitive information.

    References: https://ubuntu.com/security/notices/USN-4478-2, https://ubuntu.com/security/CVE-2020-13757

    Affected packages

    Package

    Name: python-rsa

    Purl: pkg:deb/ubuntu/python-rsa?arch=source&distro=esm-apps%2Fxenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.2.3-1.1ubuntu0.1~esm1

    Affected versions

    3.1.4-1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    USN-4478-2 | CVE-DB