USN-4134-2

    Dashboard / Vulnerabilities / USN-4134-2

    USN-4134-2

    Published: 23 Sept 2019Last Modified: 22 Apr 2026

    Summary: ibus regression

    Details: USN-4134-1 fixed a vulnerability in IBus. The security fix introduced a regression when being used with Qt applications. This update reverts the security fix pending further investigation. Original advisory details: Simon McVittie discovered that IBus did not enforce appropriate access controls on its private D-Bus socket. A local unprivileged user who discovers the IBus socket address of another user could exploit this to capture the key strokes of the other user.

    References: https://ubuntu.com/security/notices/USN-4134-2, https://launchpad.net/bugs/1844853

    Affected packages

    Package

    Name: ibus

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.5.11-1ubuntu2.3

    Affected versions

    1.5.10-1ubuntu1
    1.5.11-1ubuntu1
    1.5.11-1ubuntu2
    1.5.11-1ubuntu2.1
    1.5.11-1ubuntu2.2

    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
    USN-4134-2 | CVE-DB