Ubuntu Security Notice USN-2863-1
7th January, 2016
openssl vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 12.04 LTS
Summary
OpenSSL could be made to expose sensitive information over the network.
Software description
- 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 man-in-the-middle attack, this flaw could
be exploited to view sensitive information.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 12.04 LTS:
-
libssl1.0.0
1.0.1-4ubuntu5.33
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make
all the necessary changes.