USN-1547-1: libGData, evolution-data-server vulnerability

28 August 2012

libgdata, evolution-data-server vulnerability

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

  • Ubuntu 11.10
  • Ubuntu 11.04
  • Ubuntu 10.04 LTS


Applications using GData services could be made to expose sensitive information over the network.

Software Description

  • libgdata - Library to access GData services
  • evolution-data-server - Evolution suite data server


Vreixo Formoso discovered that the libGData library, as used by Evolution and other applications, did not properly verify SSL certificates. A remote attacker could exploit this to perform a man in the middle attack to view sensitive information or alter data transmitted via the GData protocol.

Update instructions

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

Ubuntu 11.10
libgdata13 - 0.9.1-0ubuntu2.1
Ubuntu 11.04
libgdata11 - 0.8.0-0ubuntu1.1
Ubuntu 10.04 LTS
libgdata-google1.2-1 -
libgdata1.2-1 -
libgdata6 - 0.5.2-0ubuntu1.1

To update your system, please follow these instructions:

In general, a standard system update will make all the necessary changes.