ESB-2018.3465 - [Linux][Ubuntu] systemd-networkd: Multiple vulnerabilities 2018-11-06

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

                               ESB-2018.3465
                  systemd vulnerability patched in Ubuntu
                              6 November 2018

===========================================================================

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

Product:           systemd-networkd
Publisher:         Ubuntu
Operating System:  Ubuntu
                   Linux variants
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-15688  

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3806-1

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

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Ubuntu Security Notice USN-3806-1
November 05, 2018

systemd vulnerability
==========================================================================

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

- - Ubuntu 18.10
- - Ubuntu 18.04 LTS
- - Ubuntu 16.04 LTS

Summary:

systemd-networkd could be made to crash or run programs if it received
specially crafted network traffic.

Software Description:
- - systemd: system and service manager

Details:

Felix Wilhelm discovered that the systemd-networkd DHCPv6 client
incorrectly handled certain DHCPv6 messages. In configurations where
systemd-networkd is being used, an attacker on the same network could use
this issue to cause systemd-networkd to crash, resulting in a denial of
service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 18.10:
  systemd                         239-7ubuntu10.1

Ubuntu 18.04 LTS:
  systemd                         237-3ubuntu10.4

Ubuntu 16.04 LTS:
  systemd                         229-4ubuntu21.6

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

References:
  https://usn.ubuntu.com/usn/usn-3806-1
  CVE-2018-15688

Package Information:
  https://launchpad.net/ubuntu/+source/systemd/239-7ubuntu10.1
  https://launchpad.net/ubuntu/+source/systemd/237-3ubuntu10.4
  https://launchpad.net/ubuntu/+source/systemd/229-4ubuntu21.6

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===========================================================================
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