USN-3466-1: systemd vulnerability
Ubuntu Security Notice USN-3466-1
26th October, 2017
systemd vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 17.10
- Ubuntu 17.04
Summary
systemd could be made to temporarily stop responding if it received
specially crafted network traffic.
Software description
- systemd
– system and service manager
Details
Karim Hossen & Thomas Imbert discovered that systemd-resolved incorrectly
handled certain DNS responses. A remote attacker could possibly use this
issue to cause systemd to temporarily stop responding, resulting in a
denial of service.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 17.10:
-
systemd
234-2ubuntu12.1
- Ubuntu 17.04:
-
systemd
232-21ubuntu7.1
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
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