ESB-2018.0517.3 - UPDATE [Ubuntu] libreoffice-core: Access confidential data - Remote with user interaction - 2018-03-08


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             AUSCERT External Security Bulletin Redistribution

                              ESB-2018.0517.3
                         LibreOffice vulnerability
                               8 March 2018

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

Product:           libreoffice-core
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Access Confidential Data -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-6871  

Reference:         ESB-2018.0435
                   ESB-2018.0419.2

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3579-3
   http://www.ubuntu.com/usn/usn-3579-2
   http://www.ubuntu.com/usn/usn-3579-1

Revision History:  March     8 2018: USN-3579-1 caused an additional regression 
				     in LibreOffice.
                   March     2 2018: USN-3579-1 caused a regression in LibreOffice.
                   February 22 2018: Initial Release

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Ubuntu Security Notice USN-3579-3
March 07, 2018

libreoffice regression
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- - Ubuntu 17.10

Summary:

USN-3579-1 caused a regression in LibreOffice.

Software Description:
- - libreoffice: Office productivity suite

Details:

USN-3579-1 fixed a vulnerability in LibreOffice. After upgrading, it was
no longer possible for LibreOffice to open documents from certain
locations outside of the user's home directory. This update fixes the
problem.

We apologize for the inconvenience.

Original advisory details:

 It was discovered that =WEBSERVICE calls in a document could be used to
 read arbitrary files. If a user were tricked in to opening a specially
 crafted document, a remote attacker could exploit this to obtain sensitive
 information. (CVE-2018-6871)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 17.10:
  libreoffice-common              1:5.4.5-0ubuntu0.17.10.5

After a standard system update you need to restart LibreOffice to make
all the necessary changes.

References:
  https://usn.ubuntu.com/usn/usn-3579-3
  https://usn.ubuntu.com/usn/usn-3579-1
  https://launchpad.net/bugs/1751005

Package Information:
  https://launchpad.net/ubuntu/+source/libreoffice/1:5.4.5-0ubuntu0.17.10.5

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