UBUNTU-CVE-2016-6263

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    UBUNTU-CVE-2016-6263

    Published: 21 Jul 2016Last Modified: 22 Apr 2026
    Upstream:
    CVE-2016-6263
    Aliases:
    USN-3068-1

    Summary:

    Details: The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted UTF-8 data.

    References: https://ubuntu.com/security/CVE-2016-6263, https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.html, http://www.openwall.com/lists/oss-security/2016/07/20/6, https://ubuntu.com/security/notices/USN-3068-1, https://www.cve.org/CVERecord?id=CVE-2016-6263

    Affected packages

    Package

    Name: libidn

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.28-1ubuntu2.1

    Affected versions

    1.28-1ubuntu1

    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-2016-6263 | CVE-DB