14 DAY TRIAL // Canonical has just fixed a regression caused by an ICU update that was supposed to fix a number of vulnerabilities, for Ubuntu 12.04 LTS. A new update has been issued and the problem has been corrected.
The USN-2522-1 update introduced a regression in ICU, which stands for International Components for Unicode library. The problem only affected Ubuntu 12.04 LTS and LibreOffice Calc, but it was enough to prompt the developers to issue a fix for this issue.
"USN-2522-1 fixed vulnerabilities in ICU. On Ubuntu 12.04 LTS, the font patches caused a regression when using LibreOffice Calc. The patches have been temporarily backed out until the regression is investigated. We apologize for the inconvenience," said the developers in the official security notice.
Users are advised to upgrade their systems as soon as possible. You can either upgrade Ubuntu with the regular tool or you can also use the terminal to upgrade the system. Just enter these commands in a terminal near you:
[CODE=0]sudo apt-get update sudo apt-get dist-upgrade[CODE=1
In general, a standard system update will make all the necessary changes. Getting a regression fix is not something unusual and it happens all the time, and not just for Ubuntu systems. This is rather straightforward update and users won't need to reboot.