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USN-3809-1: OpenSSH vulnerabilities

6 November 2018

Several security issues were fixed in OpenSSH.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Releases

Packages

  • 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)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

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