1. Ubuntu Security Notices
  2. USN-2883-1

USN-2883-1: OpenSSL vulnerability

Publication date

28 January 2016

Overview

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

Releases

Packages

  • openssl - Secure Socket Layer (SSL) cryptographic library and tools

Details

Antonio Sanso discovered that OpenSSL reused the same private DH exponent
for the life of a server process when configured with a X9.42 style
parameter file. This could allow a remote attacker to possibly discover the
server’s private DH exponent when being used with non-safe primes.

Antonio Sanso discovered that OpenSSL reused the same private DH exponent
for the life of a server process when configured with a X9.42 style
parameter file. This could allow a remote attacker to possibly discover the
server’s private DH exponent when being used with non-safe primes.

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
15.10 wily libssl1.0.0 –  1.0.2d-0ubuntu1.3

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References

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