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Ubuntu Security Notice USN-3807-1

Ubuntu Security Notice USN-3807-1
Posted Nov 5, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3807-1 - Felix Wilhelm discovered that the NetworkManager internal DHCPv6 client incorrectly handled certain DHCPv6 messages. In non-default configurations where the internal DHCP client is enabled, an attacker on the same network could use this issue to cause NetworkManager to crash, resulting in a denial of service, or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2018-15688
MD5 | 7090d9f77e278da5d5637637cbc3037c

Ubuntu Security Notice USN-3807-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3807-1
November 05, 2018

network-manager vulnerability
==========================================================================

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

- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

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

Software Description:
- network-manager: Network connection manager

Details:

Felix Wilhelm discovered that the NetworkManager internal DHCPv6 client
incorrectly handled certain DHCPv6 messages. In non-default configurations
where the internal DHCP client is enabled, an attacker on the same network
could use this issue to cause NetworkManager 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:
network-manager 1.12.4-1ubuntu1.1

Ubuntu 18.04 LTS:
network-manager 1.10.6-2ubuntu1.1

Ubuntu 16.04 LTS:
network-manager 1.2.6-0ubuntu0.16.04.3

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

References:
https://usn.ubuntu.com/usn/usn-3807-1
CVE-2018-15688

Package Information:
https://launchpad.net/ubuntu/+source/network-manager/1.12.4-1ubuntu1.1
https://launchpad.net/ubuntu/+source/network-manager/1.10.6-2ubuntu1.1
https://launchpad.net/ubuntu/+source/network-manager/1.2.6-0ubuntu0.16.04.3

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