ESB-2018.2054 - [Linux][Debian] cinnamon: Overwrite arbitrary files - Existing account 2018-07-16

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2054
                         cinnamon security update
                               16 July 2018

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

Product:           cinnamon
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
                   Linux variants
Impact/Access:     Overwrite Arbitrary Files -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-13054  

Original Bulletin: 
   https://security-tracker.debian.org/tracker/DLA-1420-1

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

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Package        : cinnamon
Version        : 2.2.16-5+deb8u1
CVE ID         : CVE-2018-13054
Debian Bug     : #903201

It was discovered that there was a symlink attack in the Cinnamon
desktop environment.

An attacker could overwrite an arbitrary file on the filesystem via
a $HOME/.face icon file (as the cinnamon-settings-users.py GUI runs
as root).

For Debian 8 "Jessie", this issue has been fixed in cinnamon version
2.2.16-5+deb8u1.

We recommend that you upgrade your cinnamon packages.


Regards,

- - -- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby@debian.org / chris-lamb.co.uk
       `-

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