ESB-2018.1273 - [Ubuntu] packagekit: Increased privileges - Existing account 2018-04-26

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1273
                         PackageKit vulnerability
                               26 April 2018

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

Product:           packagekit
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Increased Privileges -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1106  

Reference:         ESB-2018.1272
                   ESB-2018.1265

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3634-1

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USN-3634-1: PackageKit vulnerability

24 April 2018

packagekit vulnerability

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

    Ubuntu 17.10

Summary

PackageKit could be made to install or run programs as an administrator.

Software Description

    packagekit - Provides a package management service

Details

Matthias Gerstner discovered that PackageKit incorrectly handled 
authentication. A local attacker could possibly use this issue to install 
arbitrary packages and escalate privileges.

Update instructions

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

Ubuntu 17.10
    packagekit - 1.1.7-1ubuntu0.1

To update your system, please follow these instructions: 
https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to reboot your computer to make all the
necessary changes.

References

    CVE-2018-1106

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