UBUNTU-CVE-2017-18926

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    UBUNTU-CVE-2017-18926

    Published: 6 Nov 2020Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-18926

    Summary:

    Details: raptor_xml_writer_start_element_common in raptor_xml_writer.c in Raptor RDF Syntax Library 2.0.15 miscalculates the maximum nspace declarations for the XML writer, leading to heap-based buffer overflows (sometimes seen in raptor_qname_format_as_xml).

    References: https://ubuntu.com/security/CVE-2017-18926, https://www.openwall.com/lists/oss-security/2017/06/07/1, https://github.com/LibreOffice/core/blob/master/external/redland/raptor/0001-Calcualte-max-nspace-declarations-correctly-for-XML-.patch.1, https://lists.debian.org/debian-lts-announce/2020/11/msg00012.html, https://www.debian.org/security/2020/dsa-4785, https://ubuntu.com/security/notices/USN-4630-1, https://www.cve.org/CVERecord?id=CVE-2017-18926, https://ubuntu.com/security/notices/USN-7868-1

    Affected packages

    Package

    Name: raptor2

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.0.14-1ubuntu0.16.04.1

    Affected versions

    2.0.14-1

    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-2017-18926 | CVE-DB