1. Ubuntu Security Notices
  2. USN-3628-1

USN-3628-1: OpenSSL vulnerability

Publication date

19 April 2018

Overview

OpenSSL could allow access to sensitve information.

Releases

Packages

  • 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.

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
17.10 artful libssl1.0.0 –  1.0.2g-1ubuntu13.5
16.04 xenial libssl1.0.0 –  1.0.2g-1ubuntu4.12
14.04 trusty libssl1.0.0 –  1.0.1f-1ubuntu2.25

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References

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