USN-4951-1

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    USN-4951-1

    Published: 12 May 2021Last Modified: 22 Apr 2026

    Summary: flatpak vulnerability

    Details: Anton Lydike discovered that Flatpak did not properly handle special tokens in desktop files. An attacker could use this to specially craft a Flatpak application that could escape sandbox confinement.

    References: https://ubuntu.com/security/notices/USN-4951-1, https://ubuntu.com/security/CVE-2021-21381

    Affected packages

    Package

    Name: flatpak

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.0.9-0ubuntu0.3

    Affected versions

    0.8.7-5

    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-4951-1 | CVE-DB