1. Ubuntu Security Notices
  2. USN-2863-1

USN-2863-1: OpenSSL vulnerability

Publication date

7 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

Karthikeyan Bhargavan and Gaetan Leurent discovered that OpenSSL
incorrectly allowed MD5 to be used for TLS 1.2 connections. If a remote
attacker were able to perform a machine-in-the-middle attack, this flaw could
be exploited to view sensitive information.

Karthikeyan Bhargavan and Gaetan Leurent discovered that OpenSSL
incorrectly allowed MD5 to be used for TLS 1.2 connections. If a remote
attacker were able to perform a machine-in-the-middle attack, this flaw could
be exploited to view sensitive information.

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
12.04 precise libssl1.0.0 –  1.0.1-4ubuntu5.33

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References

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