USN-4540-1

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    USN-4540-1

    Published: 24 Sept 2020Last Modified: 10 Feb 2026

    Summary: atftp vulnerabilities

    Details: Denis Andzakovic discovered that atftpd incorrectly handled certain malformed packets. A remote attacker could send a specially crafted packet to cause atftpd to crash, resulting in a denial of service. (CVE-2019-11365) Denis Andzakovic discovered that atftpd did not properly lock the thread list mutex. An attacker could send a large number of tftpd packets simultaneously when running atftpd in daemon mode to cause atftpd to crash, resulting in a denial of service. (CVE-2019-11366)

    References: https://ubuntu.com/security/notices/USN-4540-1, https://ubuntu.com/security/CVE-2019-11365, https://ubuntu.com/security/CVE-2019-11366

    Affected packages

    Package

    Name: atftp

    Purl: pkg:deb/ubuntu/[email protected]~0.18.04.1?arch=source&distro=bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.7.git20120829-3.1~0.18.04.1

    Affected versions

    0.7.git20120829-3

    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