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Ubuntu Security Notice USN-2869-1

Ubuntu Security Notice USN-2869-1
Posted Jan 14, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2869-1 - It was discovered that the OpenSSH client experimental support for resuming connections contained multiple security issues. A malicious server could use this issue to leak client memory to the server, including private client user keys.

tags | advisory
systems | linux, ubuntu
advisories | CVE-2016-0777, CVE-2016-0778
MD5 | 82bd294a865886179f34e5f0a0b66629

Ubuntu Security Notice USN-2869-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-2869-1
January 14, 2016

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

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 15.10
- Ubuntu 15.04
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

OpenSSH could be made to expose sensitive information over the network.

Software Description:
- openssh: secure shell (SSH) for secure access to remote machines

Details:

It was discovered that the OpenSSH client experimental support for resuming
connections contained multiple security issues. A malicious server could
use this issue to leak client memory to the server, including private
client user keys.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 15.10:
openssh-client 1:6.9p1-2ubuntu0.1

Ubuntu 15.04:
openssh-client 1:6.7p1-5ubuntu1.4

Ubuntu 14.04 LTS:
openssh-client 1:6.6p1-2ubuntu2.4

Ubuntu 12.04 LTS:
openssh-client 1:5.9p1-5ubuntu1.8

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2869-1
CVE-2016-0777, CVE-2016-0778

Package Information:
https://launchpad.net/ubuntu/+source/openssh/1:6.9p1-2ubuntu0.1
https://launchpad.net/ubuntu/+source/openssh/1:6.7p1-5ubuntu1.4
https://launchpad.net/ubuntu/+source/openssh/1:6.6p1-2ubuntu2.4
https://launchpad.net/ubuntu/+source/openssh/1:5.9p1-5ubuntu1.8

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