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    CVE-2017-18926

    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).

    Published:Jun 7, 2017
    Last Modified:Nov 21, 2024
    EPS:Nov 6, 2020
    EPSS Score:0.02858
    CVSS Score:7.1

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Librdf
    Product
    Raptor Rdf Syntax Library
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://www.openwall.com/lists/oss-security/2017/06/07/1https://www.openwall.com/lists/oss-security/2017/06/07/1

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

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    References

    http://www.openwall.com/lists/oss-security/2020/11/13/1
    http://www.openwall.com/lists/oss-security/2020/11/13/2
    http://www.openwall.com/lists/oss-security/2020/11/14/2
    http://www.openwall.com/lists/oss-security/2020/11/16/2
    http://www.openwall.com/lists/oss-security/2020/11/16/3
    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://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RD67AVORGQXORPWNYYUHCH6YPPT6CI4O/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RVHFYQDMVEBICIL4DBAGRRLPUR4QYWMV/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDZRNM45VPTQF2BKRWG4YRCHJGQ2L7NS/
    https://www.debian.org/security/2020/dsa-4785
    https://www.openwall.com/lists/oss-security/2017/06/07/1
    http://www.openwall.com/lists/oss-security/2020/11/13/1
    http://www.openwall.com/lists/oss-security/2020/11/13/2
    http://www.openwall.com/lists/oss-security/2020/11/14/2
    http://www.openwall.com/lists/oss-security/2020/11/16/2
    http://www.openwall.com/lists/oss-security/2020/11/16/3
    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://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RD67AVORGQXORPWNYYUHCH6YPPT6CI4O/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RVHFYQDMVEBICIL4DBAGRRLPUR4QYWMV/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDZRNM45VPTQF2BKRWG4YRCHJGQ2L7NS/
    https://www.debian.org/security/2020/dsa-4785
    https://www.openwall.com/lists/oss-security/2017/06/07/1

    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