UBUNTU-CVE-2020-13936

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    UBUNTU-CVE-2020-13936

    Published: 10 Mar 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2020-13936
    Aliases:
    USN-6281-1

    Summary:

    Details: An attacker that is able to modify Velocity templates may execute arbitrary Java code or run arbitrary system commands with the same privileges as the account running the Servlet container. This applies to applications that allow untrusted users to upload/modify velocity templates running Apache Velocity Engine versions up to 2.2.

    References: https://ubuntu.com/security/CVE-2020-13936, https://www.openwall.com/lists/oss-security/2021/03/10/1, http://www.openwall.com/lists/oss-security/2021/03/10/1, https://lists.apache.org/thread.html/r01043f584cbd47959fabe18fff64de940f81a65024bb8dddbda31d9a%40%3Cuser.velocity.apache.org%3E, https://lists.apache.org/thread.html/r01043f584cbd47959fabe18fff64de940f81a65024bb8dddbda31d9a@%3Cuser.velocity.apache.org%3E, https://lists.apache.org/thread.html/r3ea4c4c908505b20a4c268330dfe7188b90c84dcf777728d02068ae6@%3Cannounce.apache.org%3E, https://lists.apache.org/thread.html/rb042f3b0090e419cc9f5a3d32cf0baff283ccd6fcb1caea61915d6b6@%3Ccommits.velocity.apache.org%3E, https://ubuntu.com/security/notices/USN-6281-1, https://www.cve.org/CVERecord?id=CVE-2020-13936

    Affected packages

    Package

    Name: velocity

    Purl: pkg:deb/ubuntu/[email protected]~esm1?arch=source&distro=esm-apps/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.7-4ubuntu0.1~esm1

    Affected versions

    1.7-4

    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-2020-13936 | CVE-DB