ESB-2019.0229 - [Linux][Debian] mxml: Denial of service - Remote with user interaction 2019-01-29

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0229
               [SECURITY] [DLA 1641-1] mxml security update
                              29 January 2019

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

Product:           mxml
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
                   Linux variants
Impact/Access:     Denial of Service -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-20004 CVE-2016-4571 CVE-2016-4570

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2019/01/msg00018.html

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running mxml check for an updated version of the software for their
         operating system.

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Package        : mxml
Version        : 2.6-2+deb8u1
CVE ID         : CVE-2016-4570 CVE-2016-4571 CVE-2018-20004
Debian Bug     : 825855 918007


Several stack exhaustion conditions were found in mxml that can easily
crash when parsing xml files.

CVE-2016-4570

    The mxmlDelete function in mxml-node.c allows remote attackers to
    cause a denial of service (stack consumption) via crafted xml file.

CVE-2016-4571

    The mxml_write_node function in mxml-file.c allows remote attackers
    to cause a denial of service (stack consumption) via crafted xml
    file

CVE-2018-20004

    A stack-based buffer overflow in mxml_write_node via vectors
    involving a double-precision floating point number.

For Debian 8 "Jessie", these problems have been fixed in version
2.6-2+deb8u1.

We recommend that you upgrade your mxml 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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