ESB-2018.3477 - [Ubuntu] openssh: Multiple vulnerabilities 2018-11-07

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.3477
               OpenSSH vulnerabilities patched in Ubuntu LTS
                              7 November 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           openssh
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Denial of Service        -- Remote/Unauthenticated
                   Access Confidential Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-15473 CVE-2016-10708 

Reference:         ESB-2018.2535
                   ESB-2018.2473

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3809-1

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Ubuntu Security Notice USN-3809-1
November 06, 2018

openssh vulnerabilities
==========================================================================

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
   https://launchpad.net/ubuntu/+source/openssh/1:6.6p1-2ubuntu2.11

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