UBUNTU-CVE-2017-7832

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    UBUNTU-CVE-2017-7832

    Published: 15 Nov 2017Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-7832
    Aliases:
    USN-3477-1

    Summary:

    Details: The combined, single character, version of the letter 'i' with any of the potential accents in unicode, such as acute or grave, can be spoofed in the addressbar by the dotless version of 'i' followed by the same accent as a second character with most font sets. This allows for domain spoofing attacks because these combined domain names do not display as punycode. This vulnerability affects Firefox < 57.

    References: https://ubuntu.com/security/CVE-2017-7832, https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/, https://ubuntu.com/security/notices/USN-3477-1, https://www.cve.org/CVERecord?id=CVE-2017-7832

    Affected packages

    Package

    Name: firefox

    Purl: pkg:deb/ubuntu/[email protected]+build4-0ubuntu0.14.04.4?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -57.0+build4-0ubuntu0.14.04.4

    Affected versions

    24.0+build1-0ubuntu1

    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
    UBUNTU-CVE-2017-7832 | CVE-DB