Graphite is a “smart font” system developed specifically to handle the complexities of lesser-known languages of the world.
An out-of-bounds write has been found in the Graphite 2 library.
A remote attacker could entice a user to open a specially crafted document using Graphite or an application linked against Graphite library, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition.
There is no known workaround at this time.
All Graphite users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/graphite2-1.3.8-r1"