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    Debian LTS: DLA-2498-1: xerces-c security update

    Date 17 Dec 2020
    105
    Posted By LinuxSecurity Advisories
    The UK's National Cyber Security Centre (NCSC) discovered that Xerces-C, a validating XML parser library for C++, contains a use-after-free error triggered during the scanning of external DTDs. An attacker could cause a Denial of Service (DoS) and possibly
    
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    Debian LTS Advisory DLA-2498-1                This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/lts/security/                                     
    December 17, 2020                             https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------
    
    Package        : xerces-c
    Version        : 3.1.4+debian-2+deb9u2
    CVE ID         : CVE-2018-1311
    Debian Bug     : 947431
    
    The UK's National Cyber Security Centre (NCSC) discovered that
    Xerces-C, a validating XML parser library for C++, contains a
    use-after-free error triggered during the scanning of external
    DTDs. An attacker could cause a Denial of Service (DoS) and possibly
    achieve remote code execution. This flaw has not been addressed in the
    maintained version of the library and has no complete mitigation. The
    first is provided by this update which fixes the use-after-free
    vulnerability at the expense of a memory leak. The other is to disable
    DTD processing, which can be accomplished via the DOM using a standard
    parser feature, or via SAX using the XERCES_DISABLE_DTD environment
    variable.
    
    For Debian 9 stretch, this problem has been fixed in version
    3.1.4+debian-2+deb9u2.
    
    We recommend that you upgrade your xerces-c packages.
    
    For the detailed security status of xerces-c please refer to
    its security tracker page at:
    https://security-tracker.debian.org/tracker/xerces-c
    
    Further information about Debian LTS security advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://wiki.debian.org/LTS
    

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