libtheora is the reference implementation of Theora, a free and open video compression format from the Xiph.org Foundation.
An integer overflow flaw has been discovered in libtheora.
A remote attacker could execute arbitrary code or cause a Denial of Service condition.
There is no known workaround at this time.
All libtheora users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/libtheora-1.1.1"
Packages which depend on this library may need to be recompiled. Tools such as revdep-rebuild may assist in identifying some of these packages.