UBUNTU-CVE-2016-4356

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    UBUNTU-CVE-2016-4356

    Published: 29 Apr 2016Last Modified: 22 Apr 2026
    Upstream:
    CVE-2016-4356
    Aliases:
    USN-2982-1

    Summary:

    Details: The append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.3 allows remote attackers to cause a denial of service (out-of-bounds read) by clearing the high bit of the byte after invalid utf-8 encoded data.

    References: https://ubuntu.com/security/CVE-2016-4356, http://www.openwall.com/lists/oss-security/2015/04/13/5, http://www.openwall.com/lists/oss-security/2016/04/29/5, https://ubuntu.com/security/notices/USN-2982-1, https://www.cve.org/CVERecord?id=CVE-2016-4356

    Affected packages

    Package

    Name: libksba

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.3.0-3ubuntu0.14.04.2

    Affected versions

    1.3.0-2
    1.3.0-2ubuntu1
    1.3.0-3
    1.3.0-3ubuntu0.14.04.1

    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-2016-4356 | CVE-DB