USN-3990-1

    Dashboard / Vulnerabilities / USN-3990-1

    USN-3990-1

    Published: 21 May 2019Last Modified: 27 Apr 2026

    Summary: python-urllib3 vulnerabilities

    Details: It was discovered that urllib3 incorrectly removed Authorization HTTP headers when handled cross-origin redirects. This could result in credentials being sent to unintended hosts. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-20060) It was discovered that urllib3 incorrectly stripped certain characters from requests. A remote attacker could use this issue to perform CRLF injection. (CVE-2019-11236) It was discovered that urllib3 incorrectly handled situations where a desired set of CA certificates were specified. This could result in certificates being accepted by the default CA certificates contrary to expectations. This issue only affected Ubuntu 18.04 LTS, Ubuntu 18.10, and Ubuntu 19.04. (CVE-2019-11324)

    References: https://ubuntu.com/security/notices/USN-3990-1, https://ubuntu.com/security/CVE-2018-20060, https://ubuntu.com/security/CVE-2019-11236, https://ubuntu.com/security/CVE-2019-11324

    Affected packages

    Package

    Name: python-urllib3

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.13.1-2ubuntu0.16.04.3

    Affected versions

    1.11-1

    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