14 DAY TRIAL // On April 2, Canonical published in a security notice details about a libxslt vulnerability for its Ubuntu 12.10, Ubuntu 12.04 LTS, Ubuntu 11.10, Ubuntu 11.04, Ubuntu 10.04 LTS, and Ubuntu 8.04 LTS operating systems.
According to Canonical, applications using libxslt could be made to crash, if they processed a specially crafted file.
It was discovered that libxslt incorrectly handled certain empty values. If a user or automated system were tricked into processing a specially crafted XSLT document, a remote attacker could cause libxslt to crash, causing a denial of service.
The security flaws can be fixed if you upgrade your system(s) to the latest libxslt1.1 package, specific to each operating system. To apply the update, run the Update Manager application.
In general, a standard system update will make all the necessary changes. A system restart won't be necessary to implement the changes.