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    ArchLinux: 202011-20: raptor: arbitrary code execution

    Date 29 Nov 2020
    351
    Posted By LinuxSecurity Advisories
    The package raptor before version 2.0.15-14 is vulnerable to arbitrary code execution.
    Arch Linux Security Advisory ASA-202011-20
    ==========================================
    
    Severity: Medium
    Date    : 2020-11-19
    CVE-ID  : CVE-2017-18926 CVE-2020-25713
    Package : raptor
    Type    : arbitrary code execution
    Remote  : No
    Link    : https://security.archlinux.org/AVG-1283
    
    Summary
    =======
    
    The package raptor before version 2.0.15-14 is vulnerable to arbitrary
    code execution.
    
    Resolution
    ==========
    
    Upgrade to 2.0.15-14.
    
    # pacman -Syu "raptor>=2.0.15-14"
    
    The problems have been fixed upstream but no release is available yet.
    
    Workaround
    ==========
    
    None.
    
    Description
    ===========
    
    - CVE-2017-18926 (arbitrary code execution)
    
    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).
    
    - CVE-2020-25713 (arbitrary code execution)
    
    A malformed input file can lead to a segfault due to an out of bounds
    array access in raptor_xml_writer_start_element_common.
    
    Impact
    ======
    
    A maliciously crafted RDF file can crash the application or execute
    arbitrary code.
    
    References
    ==========
    
    https://bugs.archlinux.org/task/68613
    https://www.openwall.com/lists/oss-security/2017/06/07/1
    https://bugs.librdf.org/mantis/view.php?id=617
    https://bugs.librdf.org/mantis/view.php?id=618
    https://github.com/dajobe/raptor/commit/590681e546cd9aa18d57dc2ea1858cb734a3863f
    https://bugs.librdf.org/mantis/view.php?id=650
    https://bugs.librdf.org/mantis/file_download.php?file_id=348&type=bug
    https://security.archlinux.org/CVE-2017-18926
    https://security.archlinux.org/CVE-2020-25713
    

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