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Ubuntu Security Notice USN-3809-1
November 06, 2018
openssh vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in OpenSSH.
Software Description:
– openssh: secure shell (SSH) for secure access to remote machines
Details:
Robert Swiecki discovered that OpenSSH incorrectly handled certain
messages. An attacker could possibly use this issue to cause a denial
of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04
LTS. (CVE-2016-10708)
It was discovered that OpenSSH incorrectly handled certain requests.
An attacker could possibly use this issue to access sensitive
information. (CVE-2018-15473)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.04 LTS:
openssh-server 1:7.6p1-4ubuntu0.1
Ubuntu 16.04 LTS:
openssh-server 1:7.2p2-4ubuntu2.6
Ubuntu 14.04 LTS:
openssh-server 1:6.6p1-2ubuntu2.11
In general, a standard system update will makVe all the necessary
changes.
References:
https://usn.ubuntu.com/usn/usn-3809-1
CVE-2016-10708, CVE-2018-15473
Package Information:
https://launchpad.net/ubuntu/+source/openssh/1:7.6p1-4ubuntu0.1
https://launchpad.net/ubuntu/+source/openssh/1:7.2p2-4ubuntu2.6
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