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Ubuntu Security Notice USN-4120-1
September 03, 2019
systemd vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 19.04
– Ubuntu 18.04 LTS
Summary:
systemd-resolved would allow unprivileged users to change DNS settings.
Software Description:
– systemd: system and service manager
Details:
It was discovered that the systemd-resolved D-Bus interface did not
enforce appropriate access controls. A local unprivileged user could
exploit this to modify a system’s DNS resolver settings.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 19.04:
systemd 240-6ubuntu5.6
Ubuntu 18.04 LTS:
systemd 237-3ubuntu10.28
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
https://usn.ubuntu.com/4120-1
CVE-2019-15718
Package Information:
https://launchpad.net/ubuntu/+source/systemd/240-6ubuntu5.6
https://launchpad.net/ubuntu/+source/systemd/237-3ubuntu10.28
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