[USN-3628-1] OpenSSL vulnerability

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-3628-1
April 19, 2018

openssl vulnerability
==========================================================================

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

- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

OpenSSL could allow access to sensitve information.

Software Description:
- openssl: Secure Socket Layer (SSL) cryptographic library and tools

Details:

Alejandro Cabrera Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis
Manuel Alvarez Tapia discovered that OpenSSL incorrectly handled RSA
key generation. An attacker could possibly use this issue to perform a
cache-timing attack and recover private RSA keys.

Update instructions:

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

Ubuntu 17.10:
  libssl1.0.0                     1.0.2g-1ubuntu13.5

Ubuntu 16.04 LTS:
  libssl1.0.0                     1.0.2g-1ubuntu4.12

Ubuntu 14.04 LTS:
  libssl1.0.0                     1.0.1f-1ubuntu2.25

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
  https://usn.ubuntu.com/usn/usn-3628-1
  CVE-2018-0737

Package Information:
  https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu13.5
  https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu4.12
  https://launchpad.net/ubuntu/+source/openssl/1.0.1f-1ubuntu2.25
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