PeerCast is a media streaming system based on P2P technology.
James Bercegay of the GulfTech Security Research Team discovered that PeerCast insecurely implements formatted printing when receiving a request with a malformed URL.
A remote attacker could exploit this vulnerability by sending a request with a specially crafted URL to a PeerCast server to execute arbitrary code.
There is no known workaround at this time.
All PeerCast users should upgrade to the latest available version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-sound/peercast-0.1212"