The Irrlicht Engine is an open source cross-platform high performance realtime 3D engine written in C++.
An unspecified component of the B3D loader is vulnerable to a buffer overflow due to missing boundary checks.
A remote attacker could entice a user to open a specially crafted .irr file, possibly resulting in the execution of arbitrary code with the privileges of the user running the application, or a Denial of Service (crash).
There is no known workaround at this time.
All irrlicht users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-games/irrlicht-1.5"