UBUNTU-CVE-2020-13956

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    UBUNTU-CVE-2020-13956

    Published: 2 Dec 2020Last Modified: 4 Feb 2026
    Upstream:
    CVE-2020-13956
    Aliases:
    USN-5239-1

    Summary:

    Details: Apache HttpClient versions prior to version 4.5.13 and 5.0.3 can misinterpret malformed authority component in request URIs passed to the library as java.net.URI object and pick the wrong target host for request execution.

    References: https://ubuntu.com/security/CVE-2020-13956, https://bugzilla.redhat.com/show_bug.cgi?id=1886587, https://ubuntu.com/security/notices/USN-5239-1, https://www.cve.org/CVERecord?id=CVE-2020-13956

    Affected packages

    Package

    Name: httpcomponents-client

    Purl: pkg:deb/ubuntu/[email protected]+esm2?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.3.3-1ubuntu0.1+esm2

    Affected versions

    4.2.5-2

    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
    UBUNTU-CVE-2020-13956 | CVE-DB