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From: Chris Coulson
Reply-To: Ubuntu Security
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <619ac531-6637-4644-b00f-5ba87ebc21de@canonical.com>
Subject: [USN-4120-2] systemd regression
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==========================================================================
Ubuntu Security Notice USN-4120-2
September 10, 2019
systemd regression
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 19.04
- Ubuntu 18.04 LTS
Summary:
USN-4120-1 caused a regression in systemd.
Software Description:
- systemd: system and service manager
Details:
USN-4120-1 fixed a vulnerability in systemd. The update included a recent
SRU from the updates pocket that introduced networking problems for some
users. This update fixes the problem.
We apologize for the inconvenience.
Original advisory 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 240-6ubuntu5.7
Ubuntu 18.04 LTS:
systemd 237-3ubuntu10.29
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
https://usn.ubuntu.com/4120-2
https://usn.ubuntu.com/4120-1
https://launchpad.net/bugs/1842651
Package Information:
https://launchpad.net/ubuntu/+source/systemd/240-6ubuntu5.7
https://launchpad.net/ubuntu/+source/systemd/237-3ubuntu10.29
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