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From: Chris Coulson
Reply-To: Ubuntu Security
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <1e0b6c59-5d3f-96bf-b99b-5bcbf8d384a4@canonical.com>
Subject: [USN-3891-1] systemd vulnerability
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==========================================================================
Ubuntu Security Notice USN-3891-1
February 18, 2019
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 could be made to crash if it received specially a crafted
D-Bus message.
Software Description:
- systemd: system and service manager
Details:
It was discovered that systemd incorrectly handled certain D-Bus messages.
A local unprivileged attacker could exploit this in order to crash the
init process, resulting in a system denial-of-service (kernel panic).
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.10:
libsystemd0 239-7ubuntu10.8
systemd 239-7ubuntu10.8
Ubuntu 18.04 LTS:
libsystemd0 237-3ubuntu10.13
systemd 237-3ubuntu10.13
Ubuntu 16.04 LTS:
libsystemd0 229-4ubuntu21.16
systemd 229-4ubuntu21.16
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3891-1
CVE-2019-6454
Package Information:
https://launchpad.net/ubuntu/+source/systemd/239-7ubuntu10.8
https://launchpad.net/ubuntu/+source/systemd/237-3ubuntu10.13
https://launchpad.net/ubuntu/+source/systemd/229-4ubuntu21.16
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