==========================================================================
Ubuntu Security Notice USN-3885-2
March 04, 2019
openssh vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 18.10
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS
Summary:
One of the fixes in USN-3885-1 was incomplete.
Software Description:
– openssh: secure shell (SSH) for secure access to remote machines
Details:
USN-3885-1 fixed vulnerabilities in OpenSSH. It was discovered that the fix
for CVE-2019-6111 turned out to be incomplete. This update fixes the
problem.
Original advisory details:
Harry Sintonen discovered multiple issues in the OpenSSH scp utility. If a
user or automated system were tricked into connecting to an untrusted
server, a remote attacker could possibly use these issues to write to
arbitrary files, change directory permissions, and spoof client output.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.10:
openssh-client 1:7.7p1-4ubuntu0.3
Ubuntu 18.04 LTS:
openssh-client 1:7.6p1-4ubuntu0.3
Ubuntu 16.04 LTS:
openssh-client 1:7.2p2-4ubuntu2.8
Ubuntu 14.04 LTS:
openssh-client 1:6.6p1-2ubuntu2.13
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3885-2
https://usn.ubuntu.com/usn/usn-3885-1
CVE-2019-6111
Package Information:
https://launchpad.net/ubuntu/+source/openssh/1:7.7p1-4ubuntu0.3
https://launchpad.net/ubuntu/+source/openssh/1:7.6p1-4ubuntu0.3
https://launchpad.net/ubuntu/+source/openssh/1:7.2p2-4ubuntu2.8
https://launchpad.net/ubuntu/+source/openssh/1:6.6p1-2ubuntu2.13
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