UBUNTU-CVE-2019-11721

    Dashboard / Vulnerabilities / UBUNTU-CVE-2019-11721

    UBUNTU-CVE-2019-11721

    Published: 11 Jul 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2019-11721
    Aliases:
    USN-4054-1

    Summary:

    Details: The unicode latin 'kra' character can be used to spoof a standard 'k' character in the addressbar. This allows for domain spoofing attacks as do not display as punycode text, allowing for user confusion. This vulnerability affects Firefox < 68.

    References: https://ubuntu.com/security/CVE-2019-11721, https://www.mozilla.org/en-US/security/advisories/mfsa2019-21/#CVE-2019-11721, https://ubuntu.com/security/notices/USN-4054-1, https://www.cve.org/CVERecord?id=CVE-2019-11721

    Affected packages

    Package

    Name: firefox

    Purl: pkg:deb/ubuntu/[email protected]+build3-0ubuntu0.16.04.1?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -68.0+build3-0ubuntu0.16.04.1

    Affected versions

    41.0.2+build2-0ubuntu1

    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