USN-5446-2

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    USN-5446-2

    Published: 30 May 2022Last Modified: 25 Jun 2026

    Summary: dpkg vulnerability

    Details: USN-5446-1 fixed a vulnerability in dpkg. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: Max Justicz discovered that dpkg incorrectly handled unpacking certain source packages. If a user or an automated system were tricked into unpacking a specially crafted source package, a remote attacker could modify files outside the target unpack directory, leading to a denial of service or potentially gaining access to the system.

    References: https://ubuntu.com/security/notices/USN-5446-2, https://ubuntu.com/security/CVE-2022-1664

    Affected packages

    Package

    Name: dpkg

    Purl: pkg:deb/ubuntu/dpkg?arch=source&distro=esm-infra%2Fxenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.18.4ubuntu1.7+esm1

    Affected versions

    1.18.2ubuntu5
    1.18.3ubuntu1
    1.18.4ubuntu1
    1.18.4ubuntu1.1
    1.18.4ubuntu1.2
    1.18.4ubuntu1.3
    1.18.4ubuntu1.4
    1.18.4ubuntu1.5
    1.18.4ubuntu1.6
    1.18.4ubuntu1.7

    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-5446-2 | CVE-DB