libreoffice: Multiple vulnerabilities

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.3737
                        libreoffice security update
                              7 October 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           libreoffice
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Reduced Security                -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-9854 CVE-2019-9853 CVE-2019-9852
                   CVE-2019-9851 CVE-2019-9850 CVE-2019-9849
                   CVE-2019-9848 CVE-2018-16858 

Reference:         ESB-2019.3607
                   ESB-2019.3539
                   ESB-2019.2051
                   ESB-2019.0350
                   ESB-2019.0305.2

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2019/10/msg00005.html

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Package        : libreoffice
Version        : 1:4.3.3-2+deb8u13
CVE ID         : CVE-2019-9848 CVE-2019-9849 CVE-2019-9850 CVE-2019-9851=20
                 CVE-2019-9852 CVE-2019-9853 CVE-2019-9854


Several vulnerabilities were discovered in LibreOffice, the office
productivity suite.

CVE-2019-9848

    Nils Emmerich discovered that malicious documents could execute
    arbitrary Python code via LibreLogo.

CVE-2019-9849

    Matei Badanoiu discovered that the stealth mode did not apply to
    bullet graphics.

CVE-2019-9850

    It was discovered that the protections implemented in CVE-2019-9848
    could be bypassed because of insufficient URL validation.

CVE-2019-9851

    Gabriel Masei discovered that malicious documents could execute
    arbitrary pre-installed scripts.

CVE-2019-9852

    Nils Emmerich discovered that the protection implemented to address
    CVE-2018-16858 could be bypassed by a URL encoding attack.

CVE-2019-9853

    Nils Emmerich discovered that malicious documents could bypass
    document security settings to execute macros contained within the
    document.

CVE-2019-9854

    It was discovered that the protection implemented to address
    CVE-2019-9852 could be bypassed because of insufficient input
    sanitization.

For Debian 8 "Jessie", these problems have been fixed in version
1:4.3.3-2+deb8u13.

We recommend that you upgrade your libreoffice packages.

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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